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Old 26 November 2019, 11:34   #21
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Country: UK - England
Town: southampton
Boat name: TOP CAT 2
Make: Scorpion 8.1
Length: 8m +
Engine: 250hp HO
Join Date: Aug 2003
Posts: 1,827
Quote:
Originally Posted by Pikey Dave View Post
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.
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.
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