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Old 24 February 2016, 03:41   #1
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Country: Netherlands
Boat name: Commando C4
Make: Bombard
Length: 4m +
Engine: Tohatsu 30HP M25C3
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Tohatsu M25C3 > 30hp

The Tohatsu M25C3 is identical to the 30hp version but restricted by the carb gasket and the timing. Upgrading to 30hp is partionally discussed here:

Tohatsu M25C3 Carb question Page: 1 - iboats Boating Forums | 609771

Has anyone attempted this ? I can manage changing the gasket but how hard is it to set the timing ? Any detailled instructions somewhere ?
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Old 24 February 2016, 05:11   #2
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you should be able to find the manual online for both engines, which will contain the timing settings. Then it's just a case of lengthening of shortening the timing link which connects to the timing plate beneath the flywheel. Tohatsus have marks on the block every 5 degrees
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