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Old 05-20-2018, 07:23 PM
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marksp
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Originally Posted by cathurga
...In the test flights we have done, the engine starts sagging after about 5 mins of flight, which leads me to think it is leaning out...

Regards, Andy
I have a friend with the FG60-R3 (Ray English mod motor) fitted in TF Zero with no baffle. He has only 1 flight total on the engine and it was exactly as you described. Flew fine for ~ 4-5 minutes, then powered dropped off.

He now wants to sell it to focus on ‘set and forget’ 2-stroke gas. My question is, has the damage already been done? Wasn’t able to get the temp, but it appeared to thermal. Wondering if there is still reasonable life left???