Mercury 60hp efi 4stroke, 2008

by Mick
(Arbroath scotland)

Will not run past 3200 revs. Under load. Sound to be starved of fuel and intermittently it will ‘clear’ and run up to 5,500 but it takes a wee while to run up to this. Never misses a beat at 3200 and have checked plugs, injectors, coils, high pressure fuel pump. Out of the water in gear it runs up easily. Not sure if the low pressure pump is faulty or if it is a sensor that makes it think it is still in neutral?

Any help would be appreciated.engine is low hours and boat is predator 165 with clean bottom ;

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