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  1. #1

    Trouble with 1999 Yamaha Waverunner GP 800cc - Help Required

    I have a 1999 yamaha waverunner gp 800cc.
    I bought it last year and it had a problem starting on its own. It would start right up when being jumped by a jumpbox, but can't start up by itself. I've tried replacing the battery and it didn't change anything.
    It also ran a little rough and the rpm's would often fluctuate and slightly jerk the bike even when you kept the throttle at a steady position. It feels as if the bike can not get up to the speed or rpm's that it is capable of.

    Well, when I went to start the yamaha 2 days ago, I jumped the battery and it started right up and ran exactly like it did at the end of last season. I shut the bike down and everything seemed to be the same since last year. However, when I tried to start the engine again, I just got a clunk sound and nothing happens, even when using a jumpbox on the battery. It seems as if the engine has seized but I had ran the bike perfectly fine about 40 minutes prior to testing it again. Could the engine actually have seized even though it had started earlier that day?

    Any help would be greatly appreciated. Thanks in advance.

  2. #2
    Mpeavler's Avatar
    Join Date
    Dec 2005
    Anderson, Indiana
    Sounds like your starter is dead....bad ground or both

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