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    1988 yamaha 225 excel oil pump adjustment on new style mikuni pump

    good morning i have a 1988 yamaha excel 225 that i have just installed a new style mikuni oil pump from yamaha with the one way check valves but they did not include any instructions for setting up the pump adjustment.any help would be greatly apprieciated.
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    1988 yamaha 225 excel oil pump

    hello i just purchased a 1988 yamaha excel on a 24' boston whaler the previos owner disconected the oil pump lines and ran premix i am going to install a new oil pump on the boat and put it back to the oil injection as the pump sends out pulses of oil to each line do the lines have to go on the...
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    1987 yamaha 225 excel oil fouling plugs after extended low speed operation

    good afternoon i have a 1987 yamaha 225 excel in a 225 boston whaler with approx 700 hours on motor.This year i am having a problem with the motor oil fouling plugs after slow speed operation of about 1 mile.I live on a creek with a no wake zone that leads into lake ontario after slow speed...
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    1988 yamaha 225 cutting out after 4000 rpm

    i have a 1988 yamaha 225 excel in a 22 foot boston whaler revenge the boat gets right up on plane and then at around 4000-4200 rpms begins to surge.What is happening is that i am getting aeration in the fuel system When this occurs the fuel filter on the motor Starts to aerate with bubbles if i...
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    1989 225 revenge anti siphon valve

    good afternoon i have a 225 revenge that i belive the antisiphon valve is sticking or restricted before i go ripping up the boat can anyone tell me the best approach to removal and inspection and were on tank is it located thanks.
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    1987 yamaha excel idles rough on 1st start after sitting overnight with motor tilted

    i have a 1987 yamaha excel 225 hp that after sitting overnight with engine tilted up and then tilting back down in the morning runs rough and misfires until i get it up on plane and then runs great the remainder of the day.If i tilt the motor up when hot after running in the water it will at...
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    1987 Yamaha 225 Excel Oil Pump Problem

    I have a 1988 24 foor boston whaler with a 1987 225 excel the problem is that after running for approx 15 minutes all warning lights and alarms went off in boat and went into some sort of limp mode.What i found is that the engine oil tank was low and the main oil tank is not pumping oil to the...
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