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Hi Everyone
we have launched a new 53 ft boat with twin 464 , 6 cylinder commercial duty Yanmar diesel engines
The engines are meant to have a maximum rpm of 2700 when at full speed. Unfortunately , they only go up to 2200 RPM ( Its not the propellers , since even with engines out of gear , engines dont exceed 2200 RPM)Any tips as to possible causes for this problem ?
Thanks beforehand
G
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