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  1. #1

    Join Date
    Mar 2009
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    Unhappy 1999 gp1200 prop help

    Im new to all this waverunner stuff.i bought a 99 gp1200.it has a protec ride plate and intake grate,trd waterbox,other than that all stock.the problem is that when you take off from a stop it will accelarate but it will not take off hard.top speed is about 50 mph.how do i know if it is the prop,wear ring? And what do you experts reccomend.thanks to all that help


  2. #2
    pilo704's Avatar
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    Jul 2008
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    dirty jerzz
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    830
    hey bro, that doesnt sound like a prop/pump issue, how is the motor running? sounds like a tuning problem, have you checked the compression yet? that would be a good place to start...by the way you will get alot more help in our old school section, the techs there are geared more toward our model of ski..mike

  3. #3

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    Mar 2009
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    TAMPA FL
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    The person i bought it from just did a top end because it lost compression about 1 month before.the ski starts and runs good.at idle it is a little rough.but two strokes do vibrate.now at idle it does stall if i leave it idling for about three seconds without touching the gas

  4. #4
    Dirty Sanchez's Avatar
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    Dec 2005
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    Northern Virginia
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    1,038
    could be carb issue. Why did the engine go out? Need to find the cause. Why did you friend have to frensh'n up the top end??

  5. #5

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    Mar 2009
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    TAMPA FL
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    The oil injection pump failed.he installed the block off plate and now it has to be premixed.how do you adj. Carbs

  6. #6

    Join Date
    Jul 2008
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    Peterstown, WV
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    100
    I second doing a compression test. Engine might not have been built right.

  7. #7
    Mongoose's Avatar
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    Aug 2005
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    Wales
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    Why would you expect different answers over here compared to the old school forum??
    You said clearly on that post that there is a gap of 2 credit cards between your prop and wear ring-that's a major issue -SORT It OUT!
    Asking a different forum is not going to make your wear ring gap shrink is it??

  8. #8
    jdog800's Avatar
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    Feb 2007
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    Alexandria L.A.
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    812
    asking in the right forum will get the answers that pertain to you....since most of the guys in the old school section run the same bike and motor as you we deal with these issues on the old skis all the time. Some of the newer 2 strokes dont have the same issues as you and may give you conflicting advice. That WHY we have a OLD SCHOOL section.
    Another thing.....dont ask in one post and then make another post in a different section about the same thing. Not only does this take up space but its very irritating to give you answers, and then have you turn around and post the same questions in another section like someone is going to give you some different answer.


    This issue was addressed and answered in the old school section. If you cant get that stop waisting our time.

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