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  1. #1
    Join Date
    Jul 2014
    Location
    Fayetteville, NC
    Posts
    8
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    2004 Yamaha VMAX V150TLRC issue

    Need assistance. 2004 Yamaha VMAX model V150TLRC. Apologize upfront for the long post.

    First and foremost before all the she issues boat would run 5500 Rpms and hit 60 mph. Now boat will not go over 5000rpms and only about 46-48 mph. No changes other than what's listed below have been made.

    was on the lake and at high RPMs, over 5000 motor was acting like there was water in the fuel or was about to run out of gas. Changed the water / fuel separator. No change after going back out.

    then changed spark plugs-same issue. Next time out boat was acting the same at high Rpms. Then fell flat on her face. Started back up fine. Then, under load would not go over about 2500 Rpms and shook bad, only under load. In neutral motor rev'd up fine. Then about half mile from ramp she came alive and seemed to run fine.

    took to boat shop and they did the following: removed and cleaned carbs, replaced fuel pumps, checked fuel for water-NONE. Checked fuel line and filters-good. Took her out to the lake, will start and run fine but when she gets to 5000 Rpms starts to "miss" and feels like water in the fuel or like it's going to run out of gas. Drop it down to about 4200-4500 Rpms, boat runs fine.

    Took it to another boat shop explained to them what has already bee done and they believed it was an electric issue. Swapped out the CDI, regulator/rectifier, ignition coils and pulser coil. Went to the lake same issue.

    So, now boat is back at the original shop, who is a Yamaha certified location.

    has anyone ever experienced this or have any idea? Thanks.

  2. #2
    Join Date
    Dec 1969
    Location
    Louisville KY.
    Posts
    140
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    Post this on the Yamaha board on bass boat central.Someone there will probably be able to help you

  3. #3
    Join Date
    Jul 2014
    Location
    Fayetteville, NC
    Posts
    8
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    THANKS

    Quote Originally Posted by trickworm View Post
    Post this on the Yamaha board on bass boat central.Someone there will probably be able to help you
    Appreciate the advise. Ive done that too.

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