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Old 04-02-2002, 10:14 PM
Shady Brook's Avatar
Shady Brook Shady Brook is offline
LawnSite Bronze Member
Join Date: Aug 2001
Location: Indiana
Posts: 1,517
stihl FS 74

Anyone have any thoughts why an FS 74 will run, sort of on nearly full choke, but will die quickly if I let the choke out? She is smoking a great deal, in the viscinity of the muffler, and also around the head. Anyone know what minimum compression should be on this unit? I have changed out the carb, and exactly the same symptoms. Gas is not an issue, I am thinking it is bigger and more expensive things. Does this sound like the engine is on it's way out. Tons of black crud buildup in the exhaust area leading to the muffler.

Any thoughts are greatly welcome.

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