Quote:
Originally Posted by Pikey Dave
Paradoxically a larger prop could make it worse. The engine has to work harder to spin the prop. I was going to ask what your WOT was/is.
I’d be tempted to remove the thermostat(s) & see if the problem persists.
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Entirely true. Do not over prop. I’ve never suffered from over propping issues but several manufacturers now have an optimal Rev range of a narrower tolerance. It would be like trying to start in 3rd gear all the time.