Chainsaw Repair
Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: Magnus on January 17, 2012, 04:09:06 pm
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I got invited to have a good look at the new 550XP that is to be released here in a month or so.
It is called Husqvarna Pro camp and we were a couple from Norway, Finland and Sweden.
I will add some pic's and video here during the week in the thread on CSCF.
I think there will be link's to HVA's pic's and Movies as well.
A nice weekend at Krägga Herrgård a bit outside Stockholm.
So now I tested the saw that will replace 346, Husqvarna 550...
(http://i7.photobucket.com/albums/y295/73MMM/HPC/CIMG7334.jpg)
(http://i7.photobucket.com/albums/y295/73MMM/HPC/CIMG7333.jpg)
(http://i7.photobucket.com/albums/y295/73MMM/HPC/CIMG7331.jpg)
More:
http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=255&t=17234 (http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=255&t=17234)
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So, what are your impressions of the 550 vs the 346? What are the weight and power specs? How broad is the power?
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Magnus told me in a PM when I ask him privately. I will let him tell you all. ;)
Info in the first 550xp thread here when I heard about them. Niko shared this. Chainsawrepair, here is the 550xp IPL (http://www.husqvarna.com/ddoc/HUSI/HUSI2011_AAaa/HUSI2011_AAaa__62.pdf), but the 543xp one isn't out yet, as far as I know.
According to the Scandinavian user manual, the 550xp is 2.8 kW/3.8 hp and 4.9 kg (10.8 lbs).
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You should read the hole thread on CSCF.
http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=255&t=17234&start=0
I know not much of you read Swedish, but the best thread of this meeting is on Sweden Forestry forum were more of us attending posted:
http://skogsforum.se/viewtopic.php?f=12&t=12633
If nothing else there is more pic's top see.
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I know not much of you read Swedish, but the best thread of this meeting is on Sweden Forestry forum were more of us attending posted:
http://skogsforum.se/viewtopic.php?f=12&t=12633
If nothing else there is more pic's top see.
Translated from Swedish to English in below link. Thanks for sharing news with us here Magnus.
Share some of the knowledge with us from time to time. Thanks again
http://translate.google.com/translate?sl=sv&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fskogsforum.se%2Fviewtopic.php%3Ff%3D12%26t%3D12633
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http://www.youtube.com/watch?v=gYfwFVk2X7w
http://www.youtube.com/watch?v=kHu-c7EU398
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Sure, I'll drop in from time to time.
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You should read the hole thread on CSCF.
http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=255&t=17234&start=0
I know not much of you read Swedish, but the best thread of this meeting is on Sweden Forestry forum were more of us attending posted:
http://skogsforum.se/viewtopic.php?f=12&t=12633
If nothing else there is more pic's top see.
I read Swedish just fine :), but don't really have much to contribue on the 550xp.....
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Anybody know when these are to be selling in the States
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Anybody know when these are to be selling in the States
Here is what I have read posted in the first thread when I heard about them with date ideas. We all know husky dont do any good on timelines though. Where is that T540 they been promising forever and a day now.
http://chainsawrepair.createaforum.com/husqvarna/husqvarna-550xp-543xp-545-540/
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"This fall" is what I have been told.
And it does have revboost. 8)
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"This fall" is what I have been told.
And it does have revboost. 8)
Surely, but it doesn't look like the 543xp has it?
The 550xp has replaced the 346xp here, according to the web-site - but I haven't checked with my dealer yet......
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Has any one else ran one , from looking at the picture they seem to be built alot like the 562 and if so then should make one hell of a motor
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http://www.husqvarna.com/dk/forest/products/xp-saws/550-xp/
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More like 555 than 562.
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More like 555 than 562.
.....or the 560xp.....
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http://www.husqvarna.com/dk/forest/products/xp-saws/550-xp/
Here is what I came up with for 550xp PHO weight 4.9 Kilograms (kg) = 10.78 Pounds (lbs.)
Can anybody convert any of the other specs for us? :-[
I know today picking up my stock OE 346 and the stock 55 I could easily feel the difference in the 10.6lb and 11.4lb PHO weights.
All weights above are husky advertised weights. ;)
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http://www.husqvarna.com/dk/forest/products/xp-saws/550-xp/
Here is what I came up with for 550xp PHO weight 4.9 Kilograms (kg) = 10.78 Pounds (lbs.)
Can anybody convert any of the other specs for us?
I know today picking up my stock OE 346 and the stock 55 I could easily feel the difference in the 10.6lb and 11.4lb PHO weights.
All weights above are husky advertised weights. ;)
Displacement: 50,1 cm³
Max power: 2,8 kW/3.8 hp
Idle speed: 2800 rpm.
Max power rpm: 10200
Max rpm: 14000
Bore: 43 mm
Stroke: 34,5 mm
Ignition: SEM-DM61
Flywheel clearance: 0,3 mm
Spark plug: NGK CMR6H
Plug gap: 0,5 mm
Fuel tank: 0,52 l
Oil tank: 0,27 l
Oil pump: Adjustable, no output on idle
Oil output: 5-12 ml/min
Max torque: 2,8 Nm at 6900 rpm
Fuel consumption: 446 g/kWh
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So are these stronger than a 346 or real similar?
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So are these stronger than a 346 or real similar?
hard to know, without comparing run in stock saws. ;D
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Yeah I know but I was just wanting first impressions.
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Yeah I know but I was just wanting first impressions.
Magnus gave his first impressions somewhere ??? maybe I remember reading it in a PM we were conversing in. Not sure.
Magnus care to share 550xp experience again?
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http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=255&t=17234&start=15
There is still more to upload and I kind of wanted you to see that first before I gave you my opinion.
It was 3 day's...
I went up Friday with a friend from Skosforum.se, Naders. 670km/416,3mi. We could go on Saturday, but did not want to too early as it was sure to be a long day..
Event started Meeting Finnish and Norwegian guy's and the Husqvarna developers was the highlight for sure.
This has never been done here so it is a historic event, much bigger than the saw itself really as it means Husqvarna is willing to take in impressions and opinions as well as show and explain to user.
How did it feel? It is hard to tell after a couple tanks.
It is fast in chain speed, hold rpm pretty well but still a fresh air engine so I hope they got it right.
It will be available with the new autotune system only. Not a bad thing perhaps.
I would really like to see them hold up as well as 346. Time will tell.
Handling was not bad, perfect for limbing and thinning.
Best with this saw is that it is well thought thru. No screws or lids in bad places under handle etc.
I like that kill switch resets, anti slide features for start and when handling, tensioner finally in correct place.
This is a couple things that has been wanted for a long time
If I was to run it a bit in some larger hardwood I would likely get a more accurate and better opinion of the saw.
But I ran it in the wood it is intended for and I have high hope on this saw.
Surprisingly it did not feel much in handling between 15 and 13" bar.
I think it needs to run a couple cuts in wood pile before taking it to the woods.
I think it will adapt well to different operators and their styles.
Anders and I switched saws and it is hard to say if there was any difference, I doubt it...
Autotune or carb jets is a subject that can be discussed forever. Making compromises I don't think worked so well, so better is to either have a knowledgeable user set the saw or let the saw adjust itself.
This will be available in autotune only. If it works or not time will tell.
There is a lot of talk about gyro effects on limbing saws. This comes from weights and action of the engine as it turn.
For limbing it is not good to have lots of gyro as to affect handling as you turn it. On larger saws it has less importance.
I think this was better than 346 in this aspect.
So in conclusion i must say I have hope for this saw. I think it can be a really good limbing saw.
I really hope it holds up well and stay out of the shops after sale.
Time will tell.
To make it real clear: It is about even with 346 in performance I would say. Faster acceleration perhaps, but not more torq from my opinion.
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346: http://s7.photobucket.com/albums/y295/73MMM/HPC/?action=view¤t=CIMG7352.mp4
550: http://s7.photobucket.com/albums/y295/73MMM/HPC/?action=view¤t=CIMG7356.mp4
Both:
(http://i7.photobucket.com/albums/y295/73MMM/HPC/CIMG7342.jpg)
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346:
550:
Both:
Thanks Magnus.
346
(http://i7.photobucket.com/albums/y295/73MMM/HPC/th_CIMG7352.jpg) (http://s7.photobucket.com/albums/y295/73MMM/HPC/?action=view¤t=CIMG7352.mp4)
550
(http://i7.photobucket.com/albums/y295/73MMM/HPC/th_CIMG7356.jpg) (http://s7.photobucket.com/albums/y295/73MMM/HPC/?action=view¤t=CIMG7356.mp4)
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Ok that's what I was looking for. I picked up a 2153 recently and was going to work it over a little. Just wondered if I should have waited for the 550 to come out. Looks like it will be a long wait any way.
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Hang onto those videos fellas and remember how its done!
Fewer and fewer people "know" or are trained in the 6 point limbing technique. Thanks to the evolvement of mechanicazation.
But I have to say the operator with the 346 did the 6 point alot better then the 550 operator,
if they're the same operator then maybe he was tired with the 550 ;D
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The trousers was a bit different, so probably not the same guy? ???
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We were 25 cutting that weekend. It is not same operator on these saws.
It was me and two more that cut both 550 and 346NE trio that time to compare.
The one running 346 in video above video is Lasse Strandell.
There is more video and info here: http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=255&t=17234
And he writes on Sweden Forestry forum as well.
Lasse:
http://www.youtube.com/watch?v=k4k7bG5JGhI&feature=player_embedded#!
http://www.youtube.com/watch?v=2EJPJVzFYq4&feature=player_embedded
http://www.youtube.com/watch?v=D-Qlw5JY9Fo&feature=related
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To make it real clear: It is about even with 346 in performance I would say. Faster acceleration perhaps, but not more torq from my opinion.
Pretty much what I expected - the 346xp is obviously harder to improve much over than the 357xp was! ;)
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Been reading about the guys in UK buying their 550xp already and a detuned version husqvarna 545. http://translate.google.com/translate?hl=en&sl=de&u=http://www.husqvarna.com/de/products/professional-chainsaws/545/&ei=-Z2UT9mtIsjA2gXJzt3pDQ&sa=X&oi=translate&ct=result&resnum=3&ved=0CFwQ7gEwAg&prev=/search%3Fq%3Dhusqvarna%2B545%26hl%3Den%26client%3Dfirefox-a%26hs%3DlLn%26rls%3Dorg.mozilla:en-US:official%26prmd%3Dimvns
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...... But............ I'm told the 550 has more power and less weight than the 346. 8)
Looks like those differences are marginal....
Yes, they are small improvements in and of themselves. But a significant contrast to a competitive brand that saw it's top 50cc class saw gain some weight with it's recent redesign. ;)
Surely it is, as Husky is the only brand that manage to develop thing in the right direction! ;D
I hope that PHO weight of the new 550xp is accurate. As mentioned before and confirmed by nmurph the 45cc 346 and 50cc 346 weigh almost the same. 11+lbs. Even thought the 45cc OE showed 10.6lb spec. The new 550xp shows 10.8lb PHO weight and if it is true it would be lighter then the OE and NE.
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I know, but the KWF test lab found the OE to weight as in the specs...
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I've been digging and asking owners of the 550xp to compare.
Seems to be some hotstart issues and flooding so far. Could be operators error though. ;D
So when the 550xp is working for you. What is your opinions of the 550xp versus the 346xp 50cc version? Say in the cut bucking, limbing etc.
Are you using 325 or 3/8? I know over here the 50cc 346 loves the 3/8 in my world.
My 550 is still on 325 and runs a 13" bar. Seems to hold power in the cut better than a 346, makes power from lower down and the throttle response seems so much quicker when snedding than any older type saws.
It seems to handle better than a 346 too - while it's not actually much lighter, it feels like it is and is very very flickable.
the 346 in comparison feels very dated now.
Can't comment on longevity as yet but mine's doing OK so far.
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I went by the local Husqvarna dealer this morning and they had a 550XP on the shelf.
It sure is long. It was right above a 357XP and the power head appeared to be about a 1/2" longer than the 357XP.
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I went by the local Husqvarna dealer this morning and they had a 550XP on the shelf.
It sure is long. It was right above a 357XP and the power head appeared to be about a 1/2" longer than the 357XP.
Cool the one in Ontario, Lexington or Bucyrus? What was the retail price they had on it?
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I was at Ontario and I didn't notice any price
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I went by the local Husqvarna dealer this morning and they had a 550XP on the shelf.
It sure is long. It was right above a 357XP and the power head appeared to be about a 1/2" longer than the 357XP.
Long, and slim and light - and of course it has an outboard clutch, for better balance and handling! ;D
Spike will get a pallet early next6 week, as I understand it. ;D
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That dealer in Ontario, OH is adding on a 40 X 60 building and adding another mechanic.
They rent tools and light equipment too. That is probably what all the expansion is about?
They had a half dozen chainsaws in the back room for repair.
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Shop closed at noon today. So went digging in Mange's pics for comparison shots.
(http://i7.photobucket.com/albums/y295/73MMM/HPC/CIMG7343.jpg)
(http://i7.photobucket.com/albums/y295/73MMM/HPC/CIMG7342.jpg)
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I ordered a 550xp today.....after reading this whole thread Im kinda having second thoughts about it. It doesn't sound like the 550 is that much of an improvement over a 346,, and sounds like they might be having a few issues with them as well. I guess Ill know for myself in a few days ;D.
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I ordered a 550xp today..
Whats retail price and then what is actual selling prices?
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Honestly I don't know, Mines coming from the north east coast ;D. I doubt my dealer even knows what a 550xp is, and Im sure he won't carry them. They don't carry any pro saws less than 70cc ::). They say they can't sell them. If I wen't in and asked about a ms261, they'd try to sell me a ms 290 lol.
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I ordered a 550xp today..
Whats retail price and then what is actual selling prices?
They cost the same as the 346xp here, and the (more or less standard) discounts are the same as well - no change.
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Mine came from a reliable northeast source...;)
(http://farm8.staticflickr.com/7118/7545766212_cec8e8ed2e_z.jpg) (http://www.flickr.com/photos/41385771@N03/7545766212/)
550XP (http://www.flickr.com/photos/41385771@N03/7545766212/) by zweitakt250 (http://www.flickr.com/people/41385771@N03/), on Flickr
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just got my shipment of new 550xp.
i weighed them on my electric scales and the result's are:
346xp new edition 13.4 lbs w/ 16" .050 laminate guide bar & pixel saw chain.
550xp auto tune 13.2 lbs w/ 16" .050 laminate guide bar & pixel saw chain.
both are dry,no gas or bar oil.
(http://i116.photobucket.com/albums/o8/WILLIAMFGREENE/550XPaLargeWebview.jpg) (http://i116.photobucket.com/albums/o8/WILLIAMFGREENE/550XPaLargeWebview.jpg)
(http://i116.photobucket.com/albums/o8/WILLIAMFGREENE/550XPbLargeWebview.jpg) (http://i116.photobucket.com/albums/o8/WILLIAMFGREENE/550XPbLargeWebview.jpg)
MSRP 346 XP ne 16" $509.95
MSRP 550 XP 16" $579.95
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I havent compared IPL's yet. But do the 550 and 555 562 use the same autotune carb?
Thanks for all the pics and info you inside Husky guys share. 8)
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the 562,560,555 use zama C1M-EL44.
the 550 use walbro AT-1.
the 545 use walbro AT-1.
it's the software & ignition that changes from model to model along with carburetors.
as of this post ther has been various updates!!.....already ;) ??? ;D
(http://i116.photobucket.com/albums/o8/WILLIAMFGREENE/AUTOTUNECONFIG.jpg) (http://i116.photobucket.com/albums/o8/WILLIAMFGREENE/AUTOTUNECONFIG.jpg)
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Thanks William.
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What does the 550 weigh PHO? That is the only way to compare apples to apples. Bars and chains just introduce variables that make comparisons meaningless.
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What does the 550 weigh PHO? That is the only way to compare apples to apples. Bars and chains just introduce variables that make comparisons meaningless.
550XP 5.1 kg or 11.2 lbs
346XPne 5.2 kg or 11.4 lbs
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The 545 is in too. I wonder if the difference in the detuned 545 to the 550 is just the transfer covers like 555 to 562.
Maybe rev boost difference too.
545 is replacing 353. I like the looks of the all orange on the 545 and 555 best. JMO.
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550 bore and stroke per husky website
43 mm / 1.69 inch
34.5 mm / 1.36 inch
346 NE per husky website
44 mm / 1.73 inch
32.5 mm / 1.28 inch
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Husqvarna 545 specs listed.
Engine Specifications
Cylinder displacement 50.1 cm³
Power output 2.5 kW
Idling speed 2800 tr/min
Maximum power speed 9600 tr/min
Ignition system SEM-DM61
Spark plug NGK CMR6H
Electrode gap 0.5 mm / 0.02 "
Carburettor model name C3-EL32
Fuel tank volume 0.52 lit
Oil tank volume 0.27 lit
Oil pump type Adjustable flow
Oil pump capacity 5-12 ml/min
Air filter type Nylon 80µ
Torque, max. 2.69 Nm/6600 tr/min
Fuel Consumption 424 g/kWh
Cutting Equipment
Chain pitch .325"
Recommended bar length, min-max 33-50 cm / 13"-20"
Chain speed at max power 18.5m/s
Bar mount Small
Emission, vibration & noise data
Equivalent vibration level (ahv , eq)
front / rear handle 2,8/3,7 m/s²
Sound pressure level at operators ear 106 dB(A)
Sound power level, guaranteed (LWA) 116 dB(A)
Overall dimensions
Weight (excl. cutting equipment) 4.9kg
Husqvarna 550xp specs listed.
Engine Specifications
Cylinder displacement 50.1 cm³
Power output 2.8 kW
Idling speed 2800 rpm
Maximum power speed 10200 rpm
Cylinder bore 43 mm
Cylinder stroke 34.5 mm
Spark plug NGK CMR6H
Electrode gap 0.5 mm / 0.02 "
Fuel tank volume 0.52 lit
Oil tank volume 0.27 lit
Oil pump type Adjustable flow
Oil pump capacity 5-12 ml/min
Torque, max. 2.8 Nm/6900 rpm
Fuel Consumption 446 g/kWh
Cutting Equipment
Chain pitch .325"
Recommended bar length, min-max 35-50 cm / 13"-20"
Chain speed at max power 19.6 m/s
Emission, vibration & noise data
Equivalent vibration level (ahv , eq)
front / rear handle 2,8/3,7 m/s
Sound pressure level at operators ear 106 dB(A)
Sound power level, guaranteed (LWA) 116 dB(A)
Overall dimensions
Weight (excl. cutting equipment) 4.9 kg
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550 bore and stroke per husky website
43 mm / 1.69 inch
34.5 mm / 1.36 inch
346 NE per husky website
44 mm / 1.73 inch
32.5 mm / 1.28 inch
The 346 NE has a 44.3 mm bore, to get right over 50cc (EPA related).
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550 bore and stroke per husky website
43 mm / 1.69 inch
34.5 mm / 1.36 inch
346 NE per husky website
44 mm / 1.73 inch
32.5 mm / 1.28 inch
The 346 NE has a 44.3 mm bore, to get right over 50cc (EPA related).
We know ;).
Thats why I said per huskys website. We wont know the true bore of the 550 till someone is inside one and measures it.
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Well, I have seen the stroke listed as 32 mm as well, in a manual. Misprints like this are quite common.... ::)
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got my new 550 today, I like how it feels but will run her stock for abit before taking her apart , I want her fully broken in to get a true time before porting it , I want at least 20 tanks threw it first
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Ed take a quick peek at this thread. inside the 550 http://chainsawrepair.createaforum.com/husqvarna/inside-the-husqvarna-550xp/
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I have already seen the inside of a 550 , Once I get some more time on this 550 I can make a better carb statement but so far I wished the 562 came with a walboro instead of a zama
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put 6 tanks threw the 550 today, I'm not saying its faster than the 346 but does seem to have more torque and carry the 18 inch 3/8's bar and chain in hardwood
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I was glad to see the 550xp had a Walbro too. I haven't had the best of luck with the Zama's.
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put 6 tanks threw the 550 today, I'm not saying its faster than the 346 but does seem to have more torque and carry the 18 inch 3/8's bar and chain in hardwood
Thats good to know. Because thats what I noticed going from stock 346 45cc to 50cc was the torque difference not so much cutting any faster. If the 550 has more torque over 50cc 346 then husky went in the right direction.
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I put 2 gallons threw it today in 102F heat , saw starts fine but found once you get it real hot you need to hold the throttle wide open to fire it up say like when you stop to fill it up and it takes about 15 seconds for the autotune to set itself each tank but once set its pretty much smack on the money , the other guys were having alot of trouble keeping their saws running proper but the 550 cut good and hard all day
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only about 94F here today , ran the hell out of the 550 again, I'm sure she is well broken in now . Saw started better today as not quite as hot , As far as I concerned the 550 is a hell of a saw , there is no bog off of idle like some of the 562's have , the autotune seems to jet very nice but like I said before in the morning on first start up it takes it 15 to 30 seconds to set itself then your good to go , I like my 550 , now 1 thing that I would really like to be changed and is this , can Husky not build a spike long enough on the bottom to stop these saws from falling over on its side , I know I will be changing mine so it will sit straight in the truck
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I like my 550 , now 1 thing that I would really like to be changed and is this , can Husky not build a spike long enough on the bottom to stop these saws from falling over on its side , I know I will be changing mine so it will sit straight in the truck
So they still fall over eh? I thought I had read by other owners the 550 had fixed this issue to stop them from rolling over like the 346 had.
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I think my 550 is the worse saw I have ever had for falling over but it a real nice saw to cut trails and stuff out
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;D i just sold 550XP #1 :o.....and as luck would have it, it flunked the "ticking test". so i was not about to lose this sale,so i opened up another out of the box in front of the customer and hooked that one up to the computer.....it too flunked!.....he was shocked(me too). so i just put in gas and oil into the saw-took it outside,and it started right up and ran good!!!!....i was wonderin' if anybody else has had this problem??? geez this computer hookup stuff is something to behold,eh?
i'll post the results of the saws performance when it walks in again (hopefully no time soon) provided the hook-up works!
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What's a ticking test?
Kevin
spike60 sharing on blsnelling 550 that had troubles. (Brad had muffler modded the saw before ever running it).
OK boys, here's the doctor's report. Came up with error code #14: "The carb wants to provide more fuel than is possible at hi speed." Throttle, temp and fuel valve tests were all good. So, that leaves bad carb or air leak as possibilities. Brad put 32 minutes on the saw, so in my estimation, an air leak from the factory would have shown up right away. So we're looking at the carb.
Fired up the saw to see and hear for myself what was going on. Saw would not rev past 13,000, mostly staying in the 12,700-12,800 range. Didn't sound too good and I didn't even bother trying to cut with it. Plugged it back in and using the diagnostic tool, reset the fuel settings to the factory default numbers and then cranked her up again. Now the thing wants to rev like it's supposed to, and it kept hitting the rev limiter. Couldn't even read it with the tach. I saw 16,000 flash a couple times, which must be the rev-boost looking for a limb to cut. So, I took it out to the woods and ran a little less than half tank through it. Was cutting some 8"-9" ash and it went right through it and was holding 11,600 in the cut. So, it seems to be running fine for the most part. It did stall at idle a couple times, and there was a come and go hesitation coming off idle at first. Perhaps as the AT was adjusting itself from the factory default settings. Did a bunch of cuts on a 4" limb, and the rev-boost was evident, and mighty nice. Also, the error code did not reappear after I ran the saw.
So, did I fix it? Maaaaybe. Wasn't comfortable with those couple of stalls. I'm going to call tech service again tomorrow and get his opinion on the whole thing. I did already order a new carb which I'll warranty, but it was probably too late to ship this afternoon. Since Brad isn't exactly around the corner from me, we don't want the saw accumulating frequent flier miles. So, we don't want to take any chances with the carb. BTW, there is a way to replace carbs on these things without having to program them. All ya gotta do is put the original AT unit on the new carb.
I'm going to run it a bit more, and maybe compare it to mine for running characteristics.
The diagnostic tool, (how about we call it the "DT"), showed that the error code happened twice while you had it. So, I imagine that the second instance was what you posted above. And it looks like it reappeared as soon as it hit the wood.
I did a good 20-30 cuts and it was fine except for the stalling I mentioned. We'll get it sorted out tomorrow. I'm most anxious to hear what they think about resetting the fuel numbers and the problem seemingly going away.
There is also something on the DT that's called a "master reset" that sends everything back to square one. But they caution that this should only be done after major work was done to the saw. Still a lot to learn, eh boys?
Quote Originally Posted by blsnelling View Post
How would this theory account for the fact that it ran perfectly for the first 20 cuts?
spike60
I'm still thinking it's just the carb. We are all naturally going to be quick to think problems are the somehow related to the AT stuff, but we still have to consider all of the other variables that you'd have to deal with in any saw.
I tried the saw today, and I noticed that the primer really doesn't fill and firm up like it's supposed to. I've run into this on a few 346's, and that has usually meant that a new carb was in order. The saw doesn't want to idle consistantly. It will hold at 2700-2800 and then just quit.
The carb did ship yesterday from SC, meaning it should be here tomorrow. Supposed to be freaking 93+ tomorrow so I'm going to be fortunate enough to be able to duplicate Brad's comfortable running environment.
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Fuel valve test.
http://www.youtube.com/watch?v=7NNMeKIfUK4 (http://www.youtube.com/watch?v=7NNMeKIfUK4)
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the post by mweba is an excellent answer!....my question is"what good is the dt if it don't tick,but yet the saw runs,restarts good?
and the hook up part on the carb???? that's why i'm waiting for the saw to walk back in.
i've had 3 carbs on a 555 with the original original hook up part. 2 of the carbs were the latest available.....i'm waiting on this one also to walk back in. this saw has the running problems kevin just described in his post above.
who is going to be the guy who wants my not working hook ups???....and tears them apart to tell us whats wrong with them and tells us how to fix'em????? ;)
i've got 3 562's out of the box that pass all the tests,start up good,and are out the door since january & aint been back since (thank god)
i'm still waiting for 545 to sell ::)
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my 550 works very nice but I did see a 562 today that will not rpm at all , it just stays rich so I'm thinking it needs to be reset
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I have only had experience with this one 550 but I can tell you the DT tool does not always recognize the processor. Sometimes I have to plug it back in a couple times. Not sure if it's a connection issue? Or just a simple read problem. One thing is for sure, the access to the port is a blessing.
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who is going to be the guy who wants my not working hook ups???....and tears them apart to tell us whats wrong with them and tells us how to fix'em????? ;)
Got just the guy that likes to dig in on the new stuff. mweba
Mitch there it is. Wasnt you looking for a non-working (whatever you call it in your above video)?
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Got just the guy that likes to dig in on the new stuff. mweba
Mitch there it is. Wasnt you looking for a non-working (whatever you call it in your above video)?
Yes, I want anything Husky does not send a call for. Very interesting stuff.
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Yes, I want anything Husky does not send a call for. Very interesting stuff.
pm me with your shipping address. i got some samples for you!
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So what can you honestly set with this Tool , Husky has for the new autotune saws , can you set anything or just read whats going on in the carb setup , Can you change how the carb setting are bring used, like if you want a richer setting or leaner setting and how much is this tool, I was told the same tool for the 550, 555, 562
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So what can you honestly set with this Tool , Husky has for the new autotune saws , can you set anything or just read whats going on in the carb setup , Can you change how the carb setting are bring used, like if you want a richer setting or leaner setting and how much is this tool, I was told the same tool for the 550, 555, 562
The tool is intended for diagnostics only. The user can not change the fuel settings beyond what hva software updates do on their own. The software already looks for the optimum mixture while in the cut.....take that for what its worth.
"We" are working on the software code already.
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should not be that hard to figure out then
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Thanks William! Looks like I'll have the knife out tonight ;D
(http://farm9.staticflickr.com/8290/7735400388_0d5de5f79d_c.jpg) (http://www.flickr.com/photos/mweba1/7735400388/)
100_4912 (http://www.flickr.com/photos/mweba1/7735400388/) by mweba1 (http://www.flickr.com/people/mweba1/), on Flickr
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I'm usually a man of few words so bare with me :)
http://www.youtube.com/watch?v=E18quXUqOz0 (http://www.youtube.com/watch?v=E18quXUqOz0)
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your kind of over thinking some of it , its a pretty simple system, the walboro autotune in my books is a better system than zama's on the 562's . The metering holes in the 562's is to lean on idle circuit and to rich on midrange and that has nothing to do with the autotune , the autotune cannot make up for the wrong fuel curve . I took my 562's carb a part and changed the hole sizes in my carb on idle and midrange , A lot better now plus made my strato carb come on sooner , that also helped clean up the mid range . I hate a saw that when I hit the throttle it does not come to life NOW
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A better explanation on the carb mod would be appreciated. Afraid I'm not 100% with you. I did note per the throttle position sensor, the strato secondary starts to open at 40%. Thanks Ed
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I have had a couple 562's carbs stripped down, the first carb had a .021 low speed hole the later carbs have .022 ' hole , this is still to lean on idle so you either got to drill low hole bigger or make the notches in the butterfly smaller to let less air into motor on idle , I choose to drill the low hole bigger , I'm sure zama would of done this but to pass the EPA they had to make the saw idle very lean , now when you hit the throttle on the 562's you get a bog then they come to life , mid range is to rich , they have 2 holes letting fuel in on mid range so you need to figure out how to resize these holes smaller , I blocked the next hole up from the idle circuit right off so only running 1 midrange hole now , that made a hell of alot better throttle response . Now playing with the stratos can make the mid clean up real nice , but you have to leave enough play for when you pull the choke on that only the butterfly moves in the main carb , if your moving the stratos butterfly when choking it makes cold starting abit harder cause your not getting full air pulling threw main carb , now if you make your strato come on earlier your going to have to change the cam arm ratio cause you will end up with the stratos way over centre so drilling a new hole in the strato butterfly arm is needed , Now this stuff is just me and what I do as like I said I hate running a saw that is not as close to perfect as I can get it
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Ed,
Thanks for the explanation on your mods. Guess I misunderstood, thought you meant I had over engineered some parts of it in my own mind, getting some of it wrong. Turns out we are on the same page just took a different approach.
The way I dealt with the hesitation was increasing the size of the venturi. This cured the issue for me while giving a little more useful power curve on the top end. My theory is at mid range the extra air leans out the mixture slightly reducing hesitation while dropping the low pressure at the nozzle forcing the MP to feed more fuel to stay with in spec. Although speed in the cut and the fuel mixture settings shown by the DT tool when linked are my only supporting evidence....One things for sure, if ported right, they are very strong.
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I open up the venturi myself as this does help on power , just like most ported motors , if you get it ported correct they work very well and produce good torque , I know running a ported 562 brings a smile to my face ;D and thats not easy cause I do not smike much :D
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mitch, you and ed sure brought a smile to my face!!!....as i am a man of few words too!
you guy's just let me know whatcya need for parts to correct them new saws your working on,and i'll get'em right out to ya ;D
i got a 562 full wrap heated handle in unopened carton that need's "tendin' too"......bye the sounds of the above post's.
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glad you got "the package" whatchya think about the contents.....got any new's?
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I never did find the root cause of the valve failure. The unit functioned properly besides that one issue.
Been waiting for some free time to swap that carb onto my 562 to get a feel for it. Will keep you posted.
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Got to run a woods ported 550 at the last GTG Sat. Love the rear handle feel thicker, noticed the saw felt light and nimble with 16" 325 on it. Really think the saw could use 3/8 chain IMO.
If I had to choose my woods ported OE 346 45cc that pulls 3/8 with authority or the woods ported 550 I would take my OE all day. But of course I have traded and sold all my NE 50cc too. Maybe when they come out with fuel injection and all the dealers are up to speed on this new stuff maybe. But for right now I am staying old school till they get the kinks worked out.
I do love the feel of the 550 though a lot better then the test run I had with the stock 562.
Now I need to get a hold of procarbines stock 550 to see how it cuts before he muffler mods it then run it later with muffler mod.
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Who drug a 550 along? I do like the feel more than a 346.
EDIT Never mind, I added 2 n 2
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Who drug a 550 along? I do like the feel more than a 346.
EDIT Never mind, I added 2 n 2
It was cutting faster in the 10x10 cottonwood then his 346 50cc with 357 carb with 325. But then again my 45cc with 3/8 cut right with that 50cc and my NE 50cc with 346 carb with 3/8 out cut that 346 at spring gtg.
Dont really matter firewood will never know the difference.
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Dont really matter firewood will never know the difference.
+1 Last I heard, he was still fighting for gains out of that saw.
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My perfect package would be the woods ported 45cc or 50cc motor with 357 carb in the 550 etc. With no auto tune ;D