Author Topic: Husqvarna 550xp Pro Camp.  (Read 12601 times)

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Offline EHP

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Re: Husqvarna 550xp Pro Camp.
« Reply #60 on: July 22, 2012, 11:11:49 pm »
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

Offline komatsuvarna

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Re: Husqvarna 550xp Pro Camp.
« Reply #61 on: July 23, 2012, 04:20:09 am »
I was glad to see the 550xp had a Walbro too.  I haven't had the best of luck with the Zama's.

Offline Cut4fun .

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Re: Husqvarna 550xp Pro Camp.
« Reply #62 on: July 23, 2012, 12:49:44 pm »
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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Offline EHP

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Re: Husqvarna 550xp Pro Camp.
« Reply #63 on: July 23, 2012, 11:04:33 pm »
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

Offline EHP

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Re: Husqvarna 550xp Pro Camp.
« Reply #64 on: July 24, 2012, 07:10:23 pm »
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

Offline Cut4fun .

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Re: Husqvarna 550xp Pro Camp.
« Reply #65 on: July 24, 2012, 07:51:21 pm »
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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Offline EHP

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Re: Husqvarna 550xp Pro Camp.
« Reply #66 on: July 26, 2012, 06:47:45 pm »
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

Offline William Greene

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Re: Husqvarna 550xp Pro Camp.
« Reply #67 on: August 01, 2012, 01:22:42 pm »
 ;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!

Offline Cut4fun .

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Re: Husqvarna 550xp Pro Camp.
« Reply #68 on: August 01, 2012, 02:14:39 pm »
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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Offline mweba

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Re: Husqvarna 550xp Pro Camp.
« Reply #69 on: August 01, 2012, 03:26:49 pm »

 

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