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  1. #1
    Yanksfan's Avatar
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    First time on in 5 Years, toughs and what should I look for

    Hi All,
    I got this GP1200 from a neighbor that moved out of the state, I got it for $300 so I really cant complain, it did not turn on so I had someone check it out, it was the Starter Relay Assembly, got that changed, New Battery and walla fired up in a few tries, now it just turns on in a second, however I do feel like some misfire or hesitation mechanic tells me that is the gas that is so old and to go out and burn it and put a fuel injector cleaner? says that should go away after everything is clean... this is my first waverunner so I am not that familiar with the sounds of these things yet.

    See this video after the first crank, toughs? any input is much appreciated before I go to the water on Sat.



  2. #2

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    good ski, take out as much oil gas and oil as you can and put in fresh one. Don't run any more oil gas, it will hurt the engine.

  3. #3
    Vroooooom! CougarKiller's Avatar
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    1. Pull out the gas tank
    2. Empty & Clean the tank with Marine Clean
    3. install new fuel & Oil lines
    4. reinstall everything and gas up with new petro and oil

    Hell of a deal on a 1200! Enjoy....

  4. #4
    I wanna go FAAAAASTer!! CDW78's Avatar
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    +1 heck of a deal... wish I could run across one blown up for $300 !!!
    Goodluck with it!

  5. #5
    leejax01's Avatar
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    Were the spark plugs swapped out? If not, do that also as well as the fuel filter. Realistically, it may need a carb rebuild, but be careful and listen to the engine. If it tries to die while riding, hesitate with loss of power or bogs, stop riding and get it looked at. Sitting can be more harmful than riding it if it sits too long.

  6. #6
    Yanksfan's Avatar
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    Quote Originally Posted by CougarKiller View Post
    1. Pull out the gas tank
    2. Empty & Clean the tank with Marine Clean
    3. install new fuel & Oil lines
    4. reinstall everything and gas up with new petro and oil

    Hell of a deal on a 1200! Enjoy....

    Damn pull the tank out, that seems scary for a newbie, any pointers, I will certainly drain all the gas out and and change the oil, any reason to change the lines? this baby has 60 hours on the clock it certainly looks very well taken care of.

    Also got a fuel warning but there is a lot of gas in that tank, I assume there is a float like in cars here that can be bad?

    Thanks all.

  7. #7
    Yamaha artisan Cutlass's Avatar
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    What year is this ski? Is it a GP1200 or GPR1200?
    Definitely drain all that gas out. If you try to ride it with that old gas you'll probably blow the engine up. 2 strokes are very sensitive to lean conditions so make sure everything is up to par before riding. I would also suggest checking the compression. If its good then I would also suggest rebuilding the carbs.

  8. #8
    Yanksfan's Avatar
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    is a 97 , I will take all that gas and oil out before dropping it on Saturday, I been reading about rebuilding the carbs, this is something I will look into soon.

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