Comments on: Stihl Chainsaw doggy when throtled?

By: stew_in_vic

stew_in_vic — Thu, 06 Aug 2009 22:02:32 +0000

there is a couple of things that usually make this symptom. Cracked fuel line… fuel pump side of the carburettor pumps air through the cracked fuel line to the carburettor delivering interuped fuel supply starving the motor (this is most likely as material of Stihl fuel lines crack alot) Second is a blocked filter screen inside carburettor not allowing fuel into the bleed passages therefor starving the engine of fuel.

By: paul f

paul f — Thu, 06 Aug 2009 22:02:32 +0000

sometimes its the filter, try starting it without the filter. on the styl stone cutting machine theres two little screws under the trigger, that you can turn either way for a better performance? maybe this will help

By: joe v

joe v — Thu, 06 Aug 2009 22:02:32 +0000

Look for a screen at the exhaust. It gets a build up on it. Clean the screen. I use a wire brush.