petya

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Hi guys ,

How are you ? Hope fine !!

You help me A LOT in the past .... so i back to ask for your help .

I have an YS 110 that i sent to YS parts and service in Nevada years ago . Since it came back rebuilded , always works GREAT as all YS engines .

I always use 20/20 fuel (Byron YS) 100% synthetic .

I do not fly this plane very often due to the high price of glow here in Brazil. I've flown more gasoline planes.
Last time, the engine had a very strange behavior, leaking a lot of fuel from the compression camera and giving some bursts out of time.

The engine was not opened, I just adjusted the intake and exhaust valve clearances. I am very careful with the setting and working temperature of the motor to prevent overheating.

I would like your advice on what to do. Do you think that replace the air chamber gasket would be the correct way to try to solve the problem ??

Waiting to hear from you .

THANKS !!

Best regards ,
Eduardo
Sorry my poor english , i'm from Brazil !!