Poulan Screams

[Badger]

Hey guys,

I have my 9 year old Poulan Pro 295 that has always performed well, but it the last couple weeks it has been heading downhill. First the throttle started sticking last weekend. I babied it to get the work done, but if was making a long cut, when I pulled out it would keep running for a second.

Any way, I took the saw out today (forgot to fix the throttle issue) and when I did the saw would idle fine, but as I would trigger the saw, it would take off and run extremely fast. I made a couple cuts but decided so I took it back to my shop to look at.

I did a quick once through and didn't notice anything. Plug looks ok, air filter is clean, the gas was new today. As a side note, I did wd-40 the carb linkage/cable so hopefully that is taken care of.

Any ideas of where to start. What would cause a saw to go from running good to screaming like a banshee overnight?

Thanks

 

[geoff1969]

had a mcculloch do same thing = check the carby is tightly bolted to the jug of the saw and no air leaks between the carby , spacer and jug , also check there no obstruction on the carby linkages .

 

[Cburke]

S

had a mcculloch do same thing = check the carby is tightly bolted to the jug of the saw and no air leaks between the carby , spacer and jug , also check there no obstruction on the carby linkages .

sounds like an air leak to me check ur carb install again possible u missed something. Good luck!

 

[mustash29]

Sounds like an air leak or lean condition. Those will both make a 2 stroke rev high & run lean & hot so don't run it like that. Check your fuel line too.

 

[Badger]

Thanks guys. I go through it tonight.

 

[CTYank]

But ... if you have an air leak, it will idle way high too. So that's not it.

 

[Danno77]

I'm just throwing out ideas here. If you have a partially clogged high jet, that could induce a lean condition, BUT, you'd notice a huge loss in power AND it would starve itself out once it revved up a little bit. I'm just speculating, because I've never actually had a partially clogged high jet. I've had a completely clogged one, though!

What's your fuel situation? Do you ever run something like seafoam through it? I'd mix up a gallon of mix with some Seafoam and non-ethanol blend and see if you can rev it up a few times and clean it out.

Anybody else have an opinion on this? I really don't know. I haven't finished my first cup of coffee today, so that could be part of the problem (I know it's already 10:22...)

 

[Badger]

I do occasionally run 10% ethanol through it[emoji47] but lately it's been clean unoxygenated. I've never run seafood through it so I'll try that.

 

[Badger]

But ... if you have an air leak, it will idle way high too. So that's not it.

Good to know. I can troubleshoot fuel much easier than an air leak so I'll keep looking.

I broke down and brought my dads old 034 in to the shop and got it back tonight so I'm not in as much of a hurry. I would still like this fixed and put a shorted bar on it for a limbing saw.

Do I get extra points now that I have two saws? When do I get my invitation to the secret Jedi order?

 

[russb]

I do occasionally run 10% ethanol through it[emoji47] but lately it's been clean unoxygenated. I've never run seafood through it so I'll try that.

I recommend scallops.

 

[SXIPro]

But ... if you have an air leak, it will idle way high too. So that's not it.

That is definitely not always the case with an airleak. Many times a 2 stroke will idle just fine with an air leak and then will just run away and rev to the moon.

 

[jaoneill]

I would check the fuel filter first, fuel line second; two most common causes of lean condition.....

 

[CTYank]

That is definitely not always the case with an airleak. Many times a 2 stroke will idle just fine with an air leak and then will just run away and rev to the moon.

Sorry, but not IME. An air leak large enough to be noteworthy @WOT will be the "elephant in the room" at the low flow rates at/near idle. I'd be curious if you have an example case.

 

[Badger]

I recommend scallops.

I just about spit my lunch all over my computer screen when I read this earlier today. Spellcheck strikes again!

 

[WiscWoody]

I recommend scallops.

I'd scream much less if I got more scallops!