POULAN The Official Poulan Thread

[Llama]

Hey guys first timer here with some experience and lots of research. I'm working on a 2003 Poulan 2375LE wild thing. Did a little porting on the exhaust and reduced the squish to about 0.022". Not sure if the LE stands for limited edition or low emissions. It's a non strato.

Anyways the cylinder looked good, most of the cross hatch marks were visible, I bought a new "husqavarna" ring as the old one was roughly 0.030" end gap. The new one is a little over 0.025" which was disappointing. Maybe normal? Maybe it's the cylinder, maybe it's the ring. Compression is only in the 135psi range at best. Compared to 120psi before.

I'm thinking instead of buying a new cylinder I can buy a 41.5mm ring and file it down to about 0.007" gap. I'd have to take off roughly .040" from the ends and the radius or curvature might not match the cylinder perfectly. I think it would be really close and just take a little longer to break in. Has anyone done this before?

 

[Mastermind]

Hey guys first timer here with some experience and lots of research. I'm working on a 2003 Poulan 2375LE wild thing. Did a little porting on the exhaust and reduced the squish to about 0.022". Not sure if the LE stands for limited edition or low emissions. It's a non strato.

Anyways the cylinder looked good, most of the cross hatch marks were visible, I bought a new "husqavarna" ring as the old one was roughly 0.030" end gap. The new one is a little over 0.025" which was disappointing. Maybe normal? Maybe it's the cylinder, maybe it's the ring. Compression is only in the 135psi range at best. Compared to 120psi before.

I'm thinking instead of buying a new cylinder I can buy a 41.5mm ring and file it down to about 0.007" gap. I'd have to take off roughly .040" from the ends and the radius or curvature might not match the cylinder perfectly. I think it would be really close and just take a little longer to break in. Has anyone done this before?

I don't want to discourage you from working on saws at all...but. This era of Poulan is not a saw I'd spend much time or money on.

 

[Llama]

I don't want to discourage you from working on saws at all...but. This era of Poulan is not a saw I'd spend much time or money on.

Yeah I hear you there, I just got this for free and wanted to try porting and adding compression, this being my first. It's mostly about the learning experience. Just wanted to bump that compression up and see how it reacts, maybe weld a pop up on there too. I've realized there's not much to get out of this and I'll move onto some better and bigger saws that will benefit a lot more from this work. Seeing some wild thing challenges got me going and here I am haha

I've got maybe $20 into it with the new ring and carb rebuild. Might spend another $15 for an oversize ring and see what happens

 

[Mastermind]

Yeah I hear you there, I just got this for free and wanted to try porting and adding compression, this being my first. It's mostly about the learning experience. Just wanted to bump that compression up and see how it reacts, maybe weld a pop up on there too. I've realized there's not much to get out of this and I'll move onto some better and bigger saws that will benefit a lot more from this work. Seeing some wild thing challenges got me going and here I am haha

I've got maybe $20 into it with the new ring and carb rebuild. Might spend another $15 for an oversize ring and see what happens

Worth a try.

 

[hacskaroly]

Did a little porting on the exhaust and reduced the squish to about 0.022

Here is a video of a guy who ported his Poulan WildThing, might be some tidbits of information in there for you.

 

[Llama]

Here is a video of a guy who ported his Poulan WildThing, might be some tidbits of information in there for you.

Thanks, I did watch that earlier and got some ideas for it. I think he was aiming for 155 duration on both exhaust and intake. Which would be 102.5 on exhaust and 77.5 on intake. Intake seems a little high for a 42cc, I was aiming for 75 but went over at 76.5.

And to add to the possibly low compression, I think the valve core on my compression tester is failing, it keeps reading lower on everything. When I pump air into it from my air compressor it reads about the same as the regulator so the gauge itself is good

 

[FergusonTO35]

135 psi is bog standard on these things. Tune it properly and use a good chain and you will find they are actually quite capable little saws. But yeah, probably not something you’d want to put a ton of time or money into.

 

[Llama]

Got a new valve core on the compression tester and it's back to about 130psi. Still a little disappointed with the low squish and big ring end gap negating that. Just ordered an oversized ring for about $10, I'll check back later when that's all dialed in and installed