Hmmmm, the only thing I ever had to do was fiddle with the L screw.
Must be something to do with the carb like you said. I wish I knew more about the darn things. Not a tiny crack in something that opens more when it gets hot? Impulse line?
Where are all the chainsaw mechanics tonight?;)
It could not possibly be timing could it? I am not much of a 2 stroke mechanic!
Hard hot start.............Armature air gap? Poor coil? I guess you checked all the lines.
One of the fastest ways to get fired by grandpa was to shut one of the old combines off at any time during the day...
Does it have good compression?
Not knowing much about chainsaws. Crank seals be a problem?
I have an old pro mac 850 that would not start well, I adjusted the low speed screw and it started well after that. Same as yours, had to hold the throttle open.
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