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Old 09 March 2009, 10:16   #11
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Country: UK - England
Town: Warrington/Anglesey
Make: Menai 480SR.
Length: 4m +
Engine: Tohatsoooooooo 70hp
Join Date: Sep 2005
Posts: 665
You could always adjust the throttle stop a little, stops you going all the way. Its just a screw and nut under the hood.

life's full of ups "n" downs.
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Old 09 March 2009, 17:25   #12
Country: UK - England
Town: Surrey
Length: no boat
Join Date: Feb 2009
Posts: 215
Becareful GIBB bud you dont blow that powerhead up . TO ME THAT engine is DEFINETLY REVVVVVVVVVVVVING too HIGH for that model . I have seen these powerheads and have got one NOW blown up after 43 hrs being over propped and I promise you a two stroke engine as we all KNOW are high revvvvving engines but being run like that you are asking for probs . It would be interesting to know what your top speed is with it revving that high? that my opinion if it was mine i would be propping to run @ 5300 max to be on the safe side . chow

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Old 10 March 2009, 03:47   #13
Country: France
Town: Cannes
Boat name: midkat 550
Make: apoge
Length: 5m +
Engine: 2x50 Tohatsu
Join Date: Jan 2008
Posts: 126
prop for Tohatsu 30

Your prop is definitely too long with 13" pitch, you should decrease to 11, with this one you should rev WOT above 5500 without risk.
Over-revving : no risk, all the engines have a rev limiter !

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