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    2008 Yamaha 250hp fuel problem

    Your input was very helpful. So thank you very much. I was looking for a fuel line air leak the whole time. I am not 100% certain my issue is fix but I was able to run the motor (without blowing the fuse) several time holding different RPMS for more than 1.5 min periods. It ran and sounded...
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    2008 Yamaha 250hp fuel problem

    with no load, using the (+)positive probe on meter on the blue wire coming from ECU and the ground probe on motor ground I got .08v dc when the key was turned on. I got 12.5v dc when on the positive side of the pump feed from fuse with key on.
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    2008 Yamaha 250hp fuel problem

    We are on same page, I was just running several different test and getting different readings, with key on and key off. I really thought that because the key on gave the positive terminal 12 volts and the ECU gave the black terminal continuity to ground. I thought the pump would just energize...
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    2008 Yamaha 250hp fuel problem

    I did a little test to see if the pump is working. I put a jumper from the black terminal to ground. (I ran outlet line to a bottle) Had the key turned to the on position, Got plenty of fuel, for 13 sec after the key was turned off. So I have continuity to ground when key is on, but not a true...
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    2008 Yamaha 250hp fuel problem

    Again, I cant thank you enough for your feedback and help. What I found: Because you talked about voltage I decided to start at the fuse. The 5a fuse was blown. I replaced. I started by checking continuity between the 0v (ground terminal/black wire) to ground without key on first. No continuity...
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    2008 Yamaha 250hp fuel problem

    Thank you for your replay and help What is strange is before I started messing with it, the boat ran great, just not at high throttle. I did not start checking the electrical until after it wouldn't stay running during my first try after installing the new LP, filter ,filter housing, new fuel...
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    2008 Yamaha 250hp fuel problem

    motor is on a 2010 2400 Nauticstar with a 75gal fuel tank. curently half full.
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    2008 Yamaha 250hp fuel problem

    It is 4 stroke F250BTXR
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    2008 Yamaha 250hp fuel problem

    The problem started only when I was at higher RPMs almost full throttle after running a few min at higher throttle I would lose power and motor would almost die. I would have to pump the prime ball to keep it running. Then if I stayed under 2000 RPM the boat would run great. I did some research...
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    Prop hub

    Thanks for the input. I have the tools to put it in I am just having hard time finding new hub.
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    Prop hub

    I have a 1997 Johnson V6 Ocean Runner. (J150exeuc) Has a Michigan Wheel Rapture 14 25 R19 propeller (013066). I believe I slightly spun the prop hub. Rubber not totally ruptured but the spline is not center of the hub and causes a little wobble in the prop. Shaft is straight, check with dial...
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