Chainsaw Repair
Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Poulan => Topic started by: brokenbudget on February 26, 2011, 02:59:27 pm
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Found that photo Goggling about a year ago and found it browsing through my Documents. Yeah who ever did the transfers did a great job, not gonna raise the trans just try to duplicate this work and hope for the best,should be a good saw when done.
Absolutely.
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Found that photo Goggling about a year ago and found it browsing through my Documents. Yeah who ever did the transfers did a great job, not gonna raise the trans just try to duplicate this work and hope for the best,should be a good saw when done.
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That is an interesting photo. I have not seen that one before. The transfer port that is close to the intake port looks like it turns up some. I would not raise the transfer ports unless you put a degree wheel on the cylinder and work out the timing numbers. I would just shape the tops of both transfer ports the same.
Looks like someone did some nice work on that cylinder.
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3000 FPS has been trying to assist me in modifying my Red 3.7 trying to explain in great detail how to turn the flow through the transfers to the intake side. Now I don't know when or how I came across the photo but is this the trick in turning the flow? And how would you address the T/P closest to the intake side as this photo doesn't show this step. I've ported 4 cycle motorcycle heads but the 2 cycle stuff is totally different. Does feathering the transfer guide or ring guide have any benefit towards flow gains.Since the 3400 and 3700 series have the same cylinder I figured I'd post my question here.
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv432%2FRnitety%2F3.7%2520transfers.jpg&hash=660cd45cb2ef3aead7c53ae97493bb74dc12dbaa) (http://smg.photobucket.com/user/Rnitety/media/3.7%20transfers.jpg.html)
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HDA77
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the carb was no good as the guy cranked the low jet in so tight it broke the little tip off and wedged it tight into the carb body, plus the screw he was using to hold the airfilter/cover on was too long and ended up crushing the diaphragm cover in. i didn't have the "correct" carb from one of these. so i ended up using a carb off of a mcculloch titan 57. :-* i had to switch over the throttle and choke shafts, and drill the hole for the pulde in the back of the carb, but it was all pretty easy stuff. i also used the fuel pump side cover off the original carb to get rid of the tube for the impulse line. the throttle plate is about .020 bigger than the stocker, the choke side is much bigger. had to make room for it in the top cover and make a new extension to hold the seal foam in place. got rid of the base gasket, and ended up with 26thou squish, and 140psi. compression. add a muffler mod and crank seals and she's good to go. very strong runner.
ha
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Bump looking for carb used info
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Im looking for a cover will put it up in wanted ;D
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Hi Steve
My 3400 has a chainbrake but it seems to have very little movement when compared to others. It also seems to rub on the clutch so I was wondering if I would just get a plain clutch cover and be done with it. Saw runs well otherwise.
Lee
Lee I'll trade you a non-CB clutch cover for that CB cover.
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Dang, I just sold my 3400. Had I seen this thread first I might of kept it... Good stuff!
One thing about 3400 is that there are plenty of them out there.
And they are cheap so is the 3700's.
Shep
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I know on my 395 I have a chain brake and a cover without the brake. The brake makes the saw a lot heavier and it does not clear the chips as well when noodling. So I put my cover without the brake on.
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yeah a regular cover will just bolt on. nothing to modify etc.
try to tighten that little flat slot screw above the chain. a half turn will make a good difference.
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Hi Steve
My 3400 has a chainbrake but it seems to have very little movement when compared to others. It also seems to rub on the clutch so I was wondering if I would just get a plain clutch cover and be done with it. Saw runs well otherwise.
Lee
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Dang, I just sold my 3400. Had I seen this thread first I might of kept it... Good stuff!
One thing about 3400 is that there are plenty of them out there.
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Dang, I just sold my 3400. Had I seen this thread first I might of kept it... Good stuff!
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For you guys modding the poulan 3400 3700 3800 4000 and craftsman 3.0 3.4 3.7 saws.
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(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi57.tinypic.com%2Fmw4gw1.jpg&hash=2f8e5d5ee9d3f763fd609f01033ff8d7d9df371c)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi62.tinypic.com%2F106hpgi.jpg&hash=d2be6cd2ace11884d7728a513e3ff53cc8992714)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi61.tinypic.com%2F33c3nsi.jpg&hash=4e7c335465b01a58f00dce56cd8f5a4c79644efb)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi57.tinypic.com%2F2vjd36p.jpg&hash=dcea1b13079912e34bee46cb8054912d4d55b6cd)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi58.tinypic.com%2F358dgef.jpg&hash=7ab4057ba40e04141d206fd21d037d0a95e82541)
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I love me some 3400 just something about the way they sound and run with the squish lowered and a muffler mod. This one has a scored cylinder and is still pulling 145 psi. (https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi623.photobucket.com%2Falbums%2Ftt318%2Fmagnumfloyd%2F20140131_155538.jpg&hash=c00a2517318a56350bfe6ead9d389fbda730073b) (http://s623.photobucket.com/user/magnumfloyd/media/20140131_155538.jpg.html)
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i'll have a look in the morning for the sd card with those pictures on it. :)
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Bump up for Tim. Most of the pics still there of intake mods.
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so the neighbour (who did end up buying it) comes over a couple sunday night's ago, says his dad really likes the 3400 :) and wants to know if i have any more i would like to get rid of, but wants a chainbrake. the neighour (justin) came over and seen the other (yellow) saw, but i told him i wouldn't be getting around to pulling it down until late next week, but i had an idea. i don't care either way weather one of these has a brake on it, and i can fix the one off the 3700, and use the non-brake cover off the 3400 on it. i ordered a nos brake side cover off the bay, as the adjustment area on the 3700 was broke good. and switched over all the parts. now, i gotta tell you, it isn't fun dealing with those springs. they are strong.
i ended up having to also use the muffler off the 3700 to re-muffler mod as the port is right in the way of the brake arm. took a half hour to get the side cover done, and another half hour for the muffler (not including the paint ;) ) and she's a complete saw again. justin's dad was just like a kid on christmas morning. says he's bought many new saws over they years, but this one was making him loose sleep at night. guess there's another one coming down with cad. :D and the gentleman is almost 70.
here's the finished product:
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi42.tinypic.com%2F152c0g0.jpg&hash=8f7e041f0bf263d9accba4d670601850f665c7d5)
so i went down the the local carquest with the brake arm as a good example for a color match. they screen it with the gun, and 5 minutes later they hand me over a spray can and a bill. in all the 15 years i've been going there for paint, i've never had a screw up until this. i ended up giving it a good coat anyway as i did sort of like the color, but wasn't sure if justin or his dad would like it and maybe wanted an exact match. figure i'd throw a random sticker from around the shop on it and see. they told me to leave it, it looks great. 8) so i guess i'm finished on it.
is it odd that this saw will easily run side by side with a husqvarna 365 speshul? ;D
and yes that stump is where the cover was painted! nothing but the best for me ;D and the paint turned out smooth and shinny with no dirt or fish eyes.
Nice job, thanks also for the story behind it Superrrr
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I have a 4000 I need to get running also. ;)
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and so basic to work even i can do it 8)
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these saws are built better than sherman tanks. all that's usually needed is the regular fuel system over haul. heck. i rarely have to change out crank seals on high hour units that have been sitting a long time. well worth getting up and going again.
I second that. There is also a ton of used cheap parts available.
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these saws are built better than sherman tanks. all that's usually needed is the regular fuel system over haul. heck. i rarely have to change out crank seals on high hour units that have been sitting a long time. well worth getting up and going again.
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I have a 3400 that I was just about to put up for sale the other day and the muffler bolts were still loose from where I had done a P&C inspection when I bought it. Well I use a squirt bottle with mix in it to squirt down the throat of a carb, but thought since I had the muffler loose I would just spritz it down the muffler port. Bout a half a squirt and that little heifer started on the first pull and ran till all that gas was gone. :) I just sat it back down and figured it could stay if it that's what it's reaction was.
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there around. in the us, they were an option. up here in canada they were an option aswell until the safety police started making them mandatory the solid brake handle like in the pic is the most rare. usually you see the metal loop handle.
this is the loop:
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi43.tinypic.com%2F6xrm2s.jpg&hash=ab1a14a9de9438655aaa1c93615efc571e3fb131)
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I didn't know they came with a brake. Where do I get one? I actually have a red craftsman. Did they have them for those too?
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here's the cover. you can see the whole tab busted off. you can't see the crack that goes up to the rear bar stud. or the one behind the brake spring under the brake handle. the paint didn't split open until i was removing the handle.
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi39.tinypic.com%2Fmsc9qe.jpg&hash=8d94a3b583013c8f44c9c12df024c9b9a8fd2ff3)
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so the neighbour (who did end up buying it) comes over a couple sunday night's ago, says his dad really likes the 3400 :) and wants to know if i have any more i would like to get rid of, but wants a chainbrake. the neighour (justin) came over and seen the other (yellow) saw, but i told him i wouldn't be getting around to pulling it down until late next week, but i had an idea. i don't care either way weather one of these has a brake on it, and i can fix the one off the 3700, and use the non-brake cover off the 3400 on it. i ordered a nos brake side cover off the bay, as the adjustment area on the 3700 was broke good. and switched over all the parts. now, i gotta tell you, it isn't fun dealing with those springs. they are strong.
i ended up having to also use the muffler off the 3700 to re-muffler mod as the port is right in the way of the brake arm. took a half hour to get the side cover done, and another half hour for the muffler (not including the paint ;) ) and she's a complete saw again. justin's dad was just like a kid on christmas morning. says he's bought many new saws over they years, but this one was making him loose sleep at night. guess there's another one coming down with cad. :D and the gentleman is almost 70.
here's the finished product:
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi42.tinypic.com%2F152c0g0.jpg&hash=8f7e041f0bf263d9accba4d670601850f665c7d5)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi43.tinypic.com%2F2ez4sy9.jpg&hash=dcefba42098e3efc2cd15ac531596c95203d1ea9)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi39.tinypic.com%2F257zyvk.jpg&hash=9d37b4b33876f8a4b4080454ed4ee62c6f5ee7fe)
so i went down the the local carquest with the brake arm as a good example for a color match. they screen it with the gun, and 5 minutes later they hand me over a spray can and a bill. in all the 15 years i've been going there for paint, i've never had a screw up until this. i ended up giving it a good coat anyway as i did sort of like the color, but wasn't sure if justin or his dad would like it and maybe wanted an exact match. figure i'd throw a random sticker from around the shop on it and see. they told me to leave it, it looks great. 8) so i guess i'm finished on it.
is it odd that this saw will easily run side by side with a husqvarna 365 speshul? ;D
and yes that stump is where the cover was painted! nothing but the best for me ;D and the paint turned out smooth and shinny with no dirt or fish eyes.
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;D it's over at a friends house this weekend ;D
should be back monday or tuesday.
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Ok mate, will see were it end ;D
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nope no vids as of yet. no wood here or at anywhere worth dragging up to the house :) still a little wet in the swamp, and nobody has any wood coming for a few weeks yet. when ever i can grab a log or 2 i'll post some vids. if i still have it ;D new next door neigbour really likes it ;D
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Nice job, video?? of it running/cutting
Saul
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no idea why some of the old pictures dissapered. i see that sometimes in older threads but no idea why.
I have done the same myself and figured out why on my end. If I moved a pic from a file to another file or renamed the file it was in, it changes the link code. Then the pic dont show up anymore to where it was posted.
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oh hey no problem! i don't mind posting pic or blabbing about what issues i've run into :)
no idea why some of the old pictures dissapered. i see that sometimes in older threads but no idea why. i'll have to look to see where i have them, if i still have them. they may have been on my hewlitt packard camera that crashed a couple years ago.
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I finaly got around to modding one of my 3700's. I set the squish on it down to about .022" and ended up with about 180psi on the compression. I did smooth out the intake some but not as much as you have shown brokenbudgent. I Left the carburetor stock and modified the muffler. I widened the ports on the intake and exhaust and shaped the tops of the transfers towards the intake. I did not change any timing of the ports. I also advanced the timing about 3 degrees like you suggested. I used it not to long ago on a cotton wood with a 20 in bar and a square ground chain.
That is one cutting saw, and for firewood it is quickly becoming one of my favorites.
I will have to try grinding out the intake alittle more on the next one I do. I have a 3400 with a 3700 top end ready to put on it and just need the time to get to it for now.
I also have another PP395 that I have not touched yet and plan on doing some similiar mods to it now that I know how good the mods improved the performance. Thanks for the reply.
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that's better! 8)
Wow you took alot off the intake, I am always afraid of getting that plastic to thin. How about the divider where the intake meets on the cylinder. Did you modify that also.
sorry for the delay 3000!
the plastic is actually pretty thick in those areas. i just look from the bottom and top to see where it needs to come off. you can really smooth the intake out, and it does help out.
didn't do anything to the divider except steamline it a bit.
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I'll merge and leave ALL HAIL for ya.
Done..........
You want me to get rid of missing pics?
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that saws in a box right now. :( dropped the cylinder and busted a good chunk of the mounting tab off. was just going to reseal it and it gotsed itself smacked halfway accross the shop when clumsy me wasn't watching what i was doing reaching for the sealer :-\ so i says time for a 4000 topend :)
i actually forgot about that thread. can you merge them?
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This thread you did 2 years ago had some good pics and build info. http://chainsawrepair.createaforum.com/poulan/sleeper-3400/
I liked the 4000 I had, but never had a 3400 or 3700.
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no point to this thread. just like them. :)
had this one given to me last week. friends neighbor upgraded after he couldn't figure how to get it to run properly. it was very dirty when i recieved it. the top end is like new, not realy many hours on it. she was packed full to the brim with dust and oil. the carb was no good as the guy cranked the low jet in so tight it broke the little tip off and wedged it tight into the carb body, plus the screw he was using to hold the airfilter/cover on was too long and ended up crushing the diaphragm cover in. i didn't have the "correct" carb from one of these. so i ended up using a carb off of a mcculloch titan 57. :-* i had to switch over the throttle and choke shafts, and drill the hole for the pulde in the back of the carb, but it was all pretty easy stuff. i also used the fuel pump side cover off the original carb to get rid of the tube for the impulse line. the throttle plate is about .020 bigger than the stocker, the choke side is much bigger. had to make room for it in the top cover and make a new extension to hold the seal foam in place. got rid of the base gasket, and ended up with 26thou squish, and 140psi. compression. add a muffler mod and crank seals and she's good to go. very strong runner.
had to make a choke handle for it too ;D
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi40.tinypic.com%2F2wc1tuq.jpg&hash=37615594f363f775ed7d882a5700d7c58053f229)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi44.tinypic.com%2F2nl77te.jpg&hash=c494da20279e4c9d01499b7b84efade104df80d4)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi39.tinypic.com%2Fa3ilg8.jpg&hash=5334543d2f1ee3ef283da981fbdac7682738d27f)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi43.tinypic.com%2F2wgb34i.jpg&hash=3d3c6a4e7c07a88e9481bbaedc9b915f167b432c)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi43.tinypic.com%2Fmt08jp.jpg&hash=b5a2225012867bfd882cd02052dba5a1380c9086)
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back in post #2 or 3 i stated 8deg. timing advance. misprint! it should say 3 deg. i guess fingers and eyes don't agree on everything all the time :-X
I fixed post #3 to read 3 degrees then. Just let me know if anything else needs fixed.
thanks cut! 8)
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back in post #2 or 3 i stated 8deg. timing advance. misprint! it should say 3 deg. i guess fingers and eyes don't agree on everything all the time :-X
I fixed post #3 to read 3 degrees then. Just let me know if anything else needs fixed.
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Wow you took alot off the intake, I am always afraid of getting that plastic to thin. How about the divider where the intake meets on the cylinder. Did you modify that also.
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That was interesting reading. I did no know you were going to actually race that saw. Why did you not use a 3700 instead of the 3400.
155 PSI is pretty good compression on those saws.
oh i don't race saws i just use them. got talked into both "shows" over a couple of beers by a couple of friends. i just rather have the saw that out cuts theirs :) and if it's a mature saw that looks like its been used and abused and near death so be it ;)
didn't use the 3700 at the time due to the fact it was too nice a saw to tinker with. did a proper muffler mod and it was good to go. sold it a while back to an older gentleman who liked the countervibes. and i have a couple of nos topends for the 3400's. if i slipped, no biggie, try again. :)
back in post #2 or 3 i stated 8deg. timing advance. misprint! it should say 3 deg. i guess fingers and eyes don't agree on everything all the time :-X
here's a couple more pics of the intake block. they need alot of material removed to flow.
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi47.tinypic.com%2Fbcvg6.jpg&hash=9bd9de77f328f053b2fcc414f1c31ff9ed4667be)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi45.tinypic.com%2Fyl5zr.jpg&hash=5e31eb14ac6b178cd2e6d7ed1de8a3630642cbaa)
this with the stock carb and a good muffler mod is a huge inprovement over all. these saws just need to flow smoother.
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I used to run the Tilley HS off a 272 on my Partner 5000 49cc racesaw. Love those carbs.
I prefer them over the SDC's on the Homelite models that had were built with either of the two carbs.
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I used to run the Tilley HS off a 272 on my Partner 5000 49cc racesaw. Love those carbs.
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My guess is that it's a Tillotson HS. Very impressive results for a 56cc saw with a bare aluminum jug. Will be eagerly watching this one.:D
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That was interesting reading. I did no know you were going to actually race that saw. Why did you not use a 3700 instead of the 3400.
155 PSI is pretty good compression on those saws.
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woooowee! :)
ran it that spring and did good at the north augusta (waddever they call it) festival while breaking it in. the only other saw to show up that day was a muff modded husky 365 special (good customer of mine). that saw runs pretty darn good but in the " 12 inch" green poplar i think i had him by about a split second. no special chains, just round filed lpx on both saws. and the saw horses sucked!
square filed a chain with the a-top i sold here to 660, and brought it to the athens corn fest (5+ mine saws there), and took a second place ribbon (plus a gift certificate to the local coffee shop--very good coffee). no times, they decided who ever was through the wood first was the winner :D that wood was around 10" dia.. if i remember correctly, the saws were one husky 61, same customers 365, stihl 026--guy said he ported it?? didn't seem to be--, poulan wildthing--oh yes one showed up. and a homelite variant of a solo, can't remember what model. the husky was pretty hot. sounded awsome! as you can tell, these aint no pro shows ;D just for the fun of it. i was just happy the saw didn't fall apart in front of everybody. even happier it out ran one of my favorite saws.
this past early summer i was using it to dice some manitoba (crap) maple and it lost all it's torque. i shut it down and there doesn't seem to be any engine damage so i suspect the intake block might have **** where i got a little close to the edge while grinding it. still has 155psi. comp.... :)
when i get done with this moving crap and everything sorted out i'll be back into it to change a few things. i have a new cylinder and piston for it and would like to try something else.
oh yeah! the carb is some varient of tillotson. can't remember what model, was for a bigger jonsered... pain in the arse to tune on this saw..... :D
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Dragging back up an old thread. Didja ever get into it again? Ever shoot a vid? What carb is that?
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That wasnt what I was excepting for a reply. :o But cool for him.
lets just say most of his stuff is being held together with the proverbial spit and gum, probably on purpose. not many left like him. thank gawd.
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That wasnt what I was excepting for a reply. :o But cool for him.
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seems to be not too bad. he says he's dun it a million times over the years. i tell him he should just buy more 2stroke oil. he laughs and says if the saw was to blow up from it, it would have done it by now. he's owned it since new back in '81 or '82. the cylinder and front of piston looks pretty good through the exh. port. never had it torn down, yet.
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one person who likes to run atf as a 2stroke oil :-X
Never heard of that one. How did that work out? ;D
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they're the same saw, just different cc. . the 4000 is the chrome piston alloy cyl. and thick rings, like the 3400 but 65cc. good saw.
i haven't had any problems with the chrome piston and bare cylinder on these and i have a few around here that i take care of that get run very hard by people that shouldn't own tools. yes, even one person who likes to run atf as a 2stroke oil when he runs out of the proper stuff :-X
EDIT: kevin, the cyl is chromed and the piston is alloy. i'm getting these top ends screwed up.... nothig new :D
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Is this what a 4000 looks like inside too? I just picked one of those up on trade.
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the one thing i found with these saws is the timing is way retarded. i ended up putting slots in the coil and i gave it about another 3 degrees total advance. that right there woke it up a bit.
compression went up from 125psi. to 148-150-ish (which seems like a pretty big jump?) and you can tell when you have the starter in your hand :D
these saws are set to about 11500-12000rpm stock, and this one was sounding lean at 11000rpm before the work.
i ended up splitting it and changing out the bearings and seals and resealed it up with good old 1194. now it'll 4stroke at around 13500-13700rpm and pulls very well in the cut. however it ended up starting to go lean on me again and i set it on the shelf for 'later' as i had a few other projects i needed to get at.
these are about the best firewood saw out there.
now onto the 3700 ;D
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a few more:
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi55.tinypic.com%2Fnqa9hd.jpg&hash=334c739d9c17b997a44670b983498ec6c198fb33)
impulse port for carb:
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi52.tinypic.com%2F98rifl.jpg&hash=74b473108e40df7fe0aa943e854323a40ba0275e)
a little bigger carb ;):
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi53.tinypic.com%2F2a81fkw.jpg&hash=455489a7ee40d4df31f9bc99ac72621a4df3f7c2)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi51.tinypic.com%2F2evcizq.jpg&hash=0cfc7bfcc3aefeac781cd594dd132451a0e32bec)
all fit under the covers:
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi53.tinypic.com%2F11a8g28.jpg&hash=7bb6a84f823c508f0f87948837c165a242cdc377)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi55.tinypic.com%2F30accya.jpg&hash=f636ec1090eb7d7397193317c98038dc360bb12c)
didn't do alot with the port timing (can't remember the #'s). i dropped the cyl. 28 thou and ended up with a squish of just under
21 thou (stock it was 52 thou-ouch) with gasket. brought the transfers back up, didn't touch the intake timing, just widened, as with the exhaust.
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hey guys and galls first post here ;D
started this project early last summer and haven't been able to get back at it. bare with me, my comp and camera are acting up and i can't find a few pics ::):
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi56.tinypic.com%2F2rz8dxu.jpg&hash=12c69a950536d295d8e3b2a56919b5f587d019d3)
roughing in:
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi53.tinypic.com%2F2a0tc4.jpg&hash=1a17f923771f469fdfa9ca9a9885c4e2991dcbb6)
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi51.tinypic.com%2F33eiyc3.jpg&hash=f538a59cc51f95f3c17683b59719e918e296a206)
the intake is a little constricted:
(https://chainsawrepair.createaforum.com/proxy.php?request=http%3A%2F%2Fi56.tinypic.com%2F2gsfp91.jpg&hash=fc7e7e3ddcdfac6ef3a0bd95137d364fb89b82af)