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Hollis,
check out the link in my last post, would like your opinion. It seems to tie together some things about ethanol and two cycle fuel.
Oregon last year passed law that requires all gas fuels sold at pumps contain 10% ethanol.
The PDF I linked to explains better why some two cycle engines are failing with this stuff. It relates to air-fuel mixture.
Here is a rock solid tip on adjusting the "high rev" screw on your saw carb.
DO NOT adjust it so your saw is screaming fast, this means you have leaned out the air fuel mixture and you are going to burn up your cylinder/piston much faster.
Adjust your "high rev" screw on your carb until it leans out then bring it back so there is a slight "gurgle" in the high revs. This means your running a bit richer fuel mix and it is what you want.
All above has been learned the hard way.
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