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Addendum to my earlier message:

3) Mix the oil and gas per the motor manufacturer's requirements as described in the manual.

Garris, it does not surprise me at all that using an incorrect mixture fried your chainsaw. Not a good idea no matter what oil you are running!

Years ago, my Dad had bought gas but was going to add oil "later" and a few days later sent me out to mow the lawn with our 25:1 Lawn-Boy, having forgotten all about it. I seem to recall getting blamed for it anyway - and I got to learn how to replace a head gasket!

Tim