alo I would add,.............. 5% nitro, and no green fuel. Also when it starts at idle, a pinch test will tell you the same as it does anywhere in the throttle setting. My 91 ran great for three years, then started loosing power on the top end in flight. I rebuilt the carb, added the factory reccomended and supplied head shims, and the problem was still there. Put my os 61 carb on it, never a problem since. 7d carb.
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