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  1. #1

    Join Date
    Jun 2012
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    Fort Leonard Wood, MO
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    97 Yamaha 760 lacking top end

    I just purchased a 97 Yamaha 760 2seater and it had some carb issues and didnt like to start when i got it. Now it starts just fine every time but will start to sputter if you give full throttle. Was doing this when i first got and would only run 35 now doing alot better after carb cleaning and plug replacement but will still do it and will only run about 50. Should run low 60's HELP im out of ideas


  2. #2
    gps it should run about 54, also you said carb cleaning? what did you do to clean the carbs?

  3. #3
    Yamaha artisan Cutlass's Avatar
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    Oct 2010
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    Madison, WI, USA
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    A stock GP760 should run around low 50s (maybe high 40s) mph tops...

  4. #4
    oh wow i was thinking raider, idk why but thats what i was mentioning, but yea hes right about 50, i think my brothers does 52-54gps but has a prop and rebuilt.

  5. #5
    id just rebuild the carbs if they havent been recently.
    carb cleaner can expand your gaskets.
    maybe your screws arent set right

  6. #6
    PWCSAR's Avatar
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    Apr 2012
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    Wa.
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    My GP 760 is doing 54.1 on gps around april this year (spring temps) and saw 56 today, the stock speedo is right there with my gps.. Cruising speed is about 45 to 50 though IMO... Only mod is a Skat for my boat so far.. J.

  7. #7

    Join Date
    Jun 2012
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    Fort Leonard Wood, MO
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    i think the screws arent set right, it runs decent now but the engine isnt a smooth rev when you get on it it cuts out a little bit but is running 52 on the guage, but just seems like the motor should rev smoothly like my other ski. the guy i bought it from had adjusted the 2 screws on exposed sides of the carbs. Now if memory serves me right that would be left screw on left carb and right screw on right carb. So that is one high jet and one low jet right? How do i go about readjusting the screws right?

  8. #8

    Join Date
    Jun 2012
    Location
    Fort Leonard Wood, MO
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    also this is a 97 Yamaha Wave Raider 760

  9. #9
    if its setup the same way my gp760 is then yes, the left carb left screw is low speed and right right is highspeed. if its not running right, might as well put them back to stock. the two middle screws will be a pain. not sure what theyre supposed to be at.

  10. #10

    Join Date
    Jun 2012
    Location
    Fort Leonard Wood, MO
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    can anyone give me step by step on how to adjust the screws that is my problem.they are backed way out the 2 middle ones have never been adjusted but the 2 outside ones have so left carbs low speed and right carbs high speed have been adjusted and need to be put back to stock please help. Im not completly 2 stroke retarded i raced dirt bikes for several years but skis are a new monster to me

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