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  1. #1
    wrennie's Avatar
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    2003 gp1300r engine trouble after rebuild

    Hi guys, so the story so far, bought a gp 1300r with a blown engine, stripped it down to find no2 cylinder was wrecked, so had new liners,pistons and crank, while this was being sorted i resprayed the ski, have now refitted the engine and it runs terrible.....it boggs down as soon as i give it a bit of throttle, air leak........?i'v run it up on 2 cylinders as well to see if i can identify it 1-2 1-3 2-3 still boggs down the same, also i think i found the origanal problem, coolant inlet was full of sand and the exhaust temp sender had been bypassed with a resistor

    any idears.....do they leak on the throttle body couplers...?


  2. #2
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    what year model ski?

  3. #3
    wrennie's Avatar
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    gp 1300r 2003

  4. #4
    Moderator OsideBill's Avatar
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    The cat temp bypassed usually means it has a d-plate. what is the fuel controller set to?

  5. #5
    wrennie's Avatar
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    sorry i may have misled you a bit, yes has d plate and chip, the exhaust water temp sensor ( bottom of stinger ) was bypassed with a resistor......also i remember now that i used the wrong bolt when fitting the throttle bodies noticed that it was hard against the throttle position sensor.....replaced with correct bolt....would a us sensor log a fault code? only code i have is 01.....normal

  6. #6
    WATER WOODY's Avatar
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    Make sure the power valves cycle and are not in the open position. I believe its possible to have the cables on backwards but i have never checked to see.

  7. #7
    wrennie's Avatar
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    yes they cycle, backwards.....didn't give that a thought....!you have me thinking now.....thanks woody i'll investigate that

  8. #8
    wrennie's Avatar
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    ok cables installed correctly, top cable on servo motor to left hand side of cam wheel ( looking straight on )
    Last edited by wrennie; 05-10-2009 at 04:31 PM. Reason: spelling

  9. #9
    wrennie's Avatar
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    also i have gone to premix, have mixed it at 32:1 could this be causing the problem....? also do the injectors ever get blocked on them....?

  10. #10
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    32:1 is fine, i run that mix myself.

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