MS 192 TC starting problems when mildly warm

GearHead36

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Apr 26, 2023
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I have the above chainsaw. Last year, it was hard to start all the time, so I rebuilt the carburetor with an OEM rebuild kit. It then became easy to start cold and hot. When cold or hot, it starts just as it should. When it's in between cold and hot, though, it can be very hard to start. Typically, if I start it within 10 minutes of using it, it starts fine. After 30 minutes, it will be hard to start. After an hour... I usually have to go get my big saw, because this one won't cooperate.

What causes this?

My premix is ethanol-free 87 octane mixed with Echo Red Armor oil, which has fuel stabilizer. I store my premix in reused Trufuel quart cans. I mix a gallon at a time, which typically lasts me about a month. I have full confidence in my fuel. It works fine in all my 2-cycle equipment, including this saw, except in certain conditions.
 
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StarTech

Lawn Royalty
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Stihl or Zama kit?
 
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