Yamaha 2004 Fuel Injected 250 saltwater series..loss of power

[jwellcraft]

Hi, anyone know what would cause this motor to only fire on half the cylinders? I swapped coils and it did the same thing (no fire). And before that it would run perfect sometimes and then sometimes just not get above 2500 rmps but the most I ever got it to turn up was 5,000rpms. Any suggestions?

 

[rodbolt]

Re: Yamaha 2004 Fuel Injected 250 saltwater series..loss of power

post the full model number.