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  1. #1

    gpr 1300 BIG PROBLEM

    Hi, I'm new here, i just bought a yamaha gpr 1300 and i have some problems. the ski is not accelereting, only 5000 rpm( 70 km\h) and when it's on idlle cut off, no errors on the screen, i checked the injectors, i put the d plate, i have compression. i don t know what else to do. please help me ! thank you vrey much.


  2. #2
    Mr. Millennium's Avatar
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    what year is the 1300r does it have power valves or is it a none power valve motor

  3. #3
    it's a 2003 model, power valve engine and it works perfectly( power valve)

  4. #4

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    did you check spark and will it rev high out of the water?

  5. #5
    Make sure all 3 wires are feeding spark and that all 3 plugs are fireing, a plug wire might have came off in the electrical box.

  6. #6

    Join Date
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    are the wires stock? if so they are very thin convert to an NGK set up ..
    Last edited by gpr717; 08-19-2011 at 01:29 AM. Reason: oops

  7. #7

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    look at piston wash, compression or leak down test?

  8. #8
    yes. it rev out of water, no leaks, compression is vrey good, it don t want to rev in water, only 5000 rpm and 70 km/h, sometimes it s speed is 90 when it revs a little bit. sometimes

  9. #9
    powerstroke specialist mikegp's Avatar
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    maybe a dirty fuel filter?inside the tank?

  10. #10

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    look at piston tops? look at plugs?

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