372xp help

[lumberjackking]

My 372 recently started running a bit mad. If you run her at full revs shes fine for about 5 seconds and then runs screaming and dies unless you back of the throttle. If your cutting at half revs she's fine although races a bit. Idles fine and starts and stops fine. I have cleaned the carb with carb cleaner/airline. Any suggestions?

[njm]

My 372 recently started running a bit mad. If you run her at full revs shes fine for about 5 seconds and then runs screaming and dies unless you back of the throttle. If your cutting at half revs she's fine although races a bit. Idles fine and starts and stops fine. I have cleaned the carb with carb cleaner/airline. Any suggestions?

 

Sounds like fuel starvation rather than an air leak , is it a Strato model ?

[lumberjackking]

Sounds like fuel starvation rather than an air leak , is it a Strato model ?

 

That's what I was thinking. 2009 model sorry not sure about strato

[njm]

That's what I was thinking. 2009 model sorry not sure about strato

 

I would check the carb for dirt , had a couple of intakes with small splits on 365 , 372 and 390 just behind throttle cable holder , got a run on saws this week with very fine grit in the fuel ! i see your in Scotland as well so worth checking your tank cans , prob same refinery as you

Edited March 13, 2016 by njm
info

[lumberjackking]

Is the Decomp on the top or side of the cylinder ?

 

Side of the cylinder

[njm]

I would check the carb for dirt , had a couple of intakes with small splits on 365 , 372 and 390 just behind throttle cable holder , got a run on saws this week with very fine grit in the fuel ! i see your in Scotland as well so worth checking your tank cans , prob same refinery as you

 

Your saw is not a Strato

[lumberjackking]

Ok thanks will do that.

[Riggerbear]

Air breather on the tank, I had the same a couple of months ago

[adw]

Fuel filter in the tank blocked?

[Stubby]

I think its a spit fuel hose .........