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Old 31 December 2012, 07:36   #1
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Country: UK - England
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Boat name: Reach Out
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Length: 4m +
Engine: 30hp Tohatsu EFI
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Tohatsu 30hp. Efi rev limit

Does anyone know the rpm that a 30 and 25 hp tohatsu outboards are physically limed to. Efi models around 2007 to 2012...

Their peak power us around 6000 for the 25hp and 6250 rpm for thr 30hp. I assume the rev limit is above these. I want a quick way of proving if my outboard is a 30 hp... The limiter maybe set the same for both, i. e. 6400 rpm, in which case it will not prove anything. Reading any number on the cam is the only other way of being sure that I know.
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Old 31 December 2012, 08:10   #2
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Country: UK - England
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Boat name: Reach Out
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Length: 4m +
Engine: 30hp Tohatsu EFI
Join Date: Aug 2010
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Ecu has the 30hp number on it, so 99.9% sure it's a 30hp

3AH-06402-1 ecu serial number
Throttle body is another item to check.
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Old 31 December 2012, 18:08   #3
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Boat name: Nautile
Make: Sea Rider Boats
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Ecu cuts slightly passing it's max rpm at wot stated for both engines, will need an induction tach to check in case you are running a prop pitch that revs too high and cuts prematurely before reaching wot.

Happy Boating
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