 Re: first run out. wont rev up all the way!! little power.
Run it @ 24/1 .
You may have an overly rich condition if it sputters (staccato sound) at WOT. A lean condition would cause it to sag but still run with a buzz instead of the four cycle staccato.
Look at your plug White/grey = too lean. Black/oily = too rich.
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