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  1. #1

    Seadoo 155 se 4 tec wont start

    Hi, All,
    I picked up a pair of gti 155 se from an auction, however I cannot get one to so much as beep at me. The battery is charged, I checked the fuses and cleaned the ground wire. When I jump the starter solenoid, I just get a mild spark.
    The gauges to not turn or anything.
    Does anyone have any ideas?

    Thanks

    Ron


  2. #2
    Could the starter be bad?
    seems odd with a good battery that it won't turn over with the solenoid being jumped.
    could this prevent power getting to the rest of the electronics?

  3. #3
    Click avatar for tech links/info K447's Avatar
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    Use your voltmeter (multimeter) to probe the electrical basics. Put black probe on the engine case, somewhere other than the battery cable ground bolt. Put red probe to battery negative post. Voltage reading should be zero.

    Move red probe to post on solenoid where battery positive wire goes. Should read full battery voltage.

    Make sure that any secondary power wires to the rest of the electrical are connected to the same solenoid post as the battery cable, not the starter cable post.

    With red probe still on solenoid positive post, jump solenoid. Does the voltage sag badly? If not, move meter probe to starter motor post on solenoid. Try again to jump solenoid, does the voltage jump up to 10+ volts?

  4. #4
    I unhooked the starter cable from the solenoid and put it directly on the POS battery terminal and got nothing. Could a starter short or something similar cause this and the gauges and beep not to operate?

  5. #5
    Mothman's Avatar
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    Mighta sunk and toasted the electronics.

  6. #6
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Hamme001 View Post
    I unhooked the starter cable from the solenoid and put it directly on the POS battery terminal and got nothing. ...
    Quote Originally Posted by K447 View Post
    Use your voltmeter (multimeter) to probe the electrical basics. Put black probe on the engine case, somewhere other than the battery cable ground bolt. Put red probe to battery negative post. Voltage reading should be zero.
    Jump solenoid studs, voltage should stay very close to zero.

    Move red probe to post on solenoid where battery positive wire goes. Should read full battery voltage.

    ...
    Did you do this test?
    Last edited by K447; 09-11-2016 at 09:48 AM.

  7. #7
    I did. I get 12+volts when jumping solenoid from both terminals.
    I did try a new solenoid and same thing.
    The thing is just completely dead.

  8. #8
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Hamme001 View Post
    I did. I get 12+volts when jumping solenoid from both terminals.
    ...
    The thing is just completely dead.
    Not that test. The engine ground test.

  9. #9
    I did that too. Meter reads 0 when jumping and not

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  11. #10
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by Hamme001 View Post
    I did that too. Meter reads 0 when jumping and not
    Check the wire harness ground points. Perhaps a ground is disconnected or corroded.

    Remember the engine itself is the voltage reference for ground, not the battery negative post. Everything that is supposed to be grounded should measure (with battery negative disconnected) zero ohms back to the engine case.

    Measuring ohms for grounding checks with battery hooked up can give false readings. Disconnect battery before using ohm meter.

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