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    Yamaha F225 - No Crank - Intermittent

    Greetings. New to me boat with a pair of F225 Yam 4 Strokes. One of them is sublime. The other, not so much. It has an intermittent "no crank" condition when the key is turned to start the engine. If you release and try it again, it may or may not work. The situation is getting worse...
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    It just quits after prolonged idle....fuel??

    Just bought a boat with a pair of 2005 Yam F225 4 strokes. They start instantly and run like string trimmers on meth. HOWEVER, the port engine just shuts down on its own after prolonged idle. It will stumble a second or two and then just die. If cranked, it will not start. If the primer...
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    Loss of PRM at WOTsecondaries

    "I've lost about 300 rpm a "I've lost about 300 rpm at WOT. The engine runs fine and the bottom is clean. The prop is perfect. I suspect that the secondaries on my Holley 4160 are not opening. I have fully opened the throttle (engine off) and checked that the secondaries are not sticking...
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    Lead Substitute

    My yot has an older F351 engin My yot has an older F351 engine which I assume is a reman. It was installed before I bought the boat and I have no paperwork. It's fresh water cooled and runs about 160-170 degrees. Holley 4160. I know that they call for a min of 89 octane fuel. Recently it...
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