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  1. #1

    2003 gp1300r please help

    I have a 2003 gp1300r it has a rebuilt engine from bottom up new crank and pistons has about 10hrs took the jet ski out 4th of July weekend the jet ski would barely accelerate just Boggs when you give it throttle it has compression, spark, there is no exhaust leaks even tried ridding it without the seat it has the dplate mod and is pre mix power valves are cycling any help would be great I'm so frustrated I'm about to give this thing away and buy a new 4 stroke is there anything else that I should look for thanks again


  2. #2
    powerstroke specialist mikegp's Avatar
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    any warning light ?

  3. #3
    Quote Originally Posted by mikegp View Post
    any warning light ?
    No nothing when I check the system it comes back as 01

  4. #4
    powerstroke specialist mikegp's Avatar
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    you will need to check fuel pressure and check every connector for corrosion. specially the tps at the efi.

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    WFO

  6. #5
    Quote Originally Posted by mikegp View Post
    you will need to check fuel pressure and check every connector for corrosion.
    What is the fuel pressure suppose to be and do you need a special fuel pressure gauge to check it

  7. #6
    powerstroke specialist mikegp's Avatar
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    Quote Originally Posted by Bcrow View Post
    Quote Originally Posted by mikegp View Post
    you will need to check fuel pressure and check every connector for corrosion.
    What is the fuel pressure suppose to be and do you need a special fuel pressure gauge to check it
    around 45 psi I made my own gauge using a old fuel line cut in half , and a fuel pressure gauge from the auto parts.

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