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  1. #1
    -tC tcschrader's Avatar
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    SL 700 DLX Battery Drain issues

    I've owned my ski for 3 years now and had a couple problems with the ski turning over at the end of last season. So this season I decided to buy a new battery, replace fuel lines, spark plugs, ect. It starts right up and runs fine. The next day I go to start it and the battery that was at 100% the day prior is now at 25% and won't produce enough spark for the engine to run properly. What could be draining the battery and where should I start?
    Thanks,
    Tyler


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Welcome to the Hulk

    Check my signature for links to service manuals and other useful info.

    I would start by checking the voltage on the Orange wires in the electrical box. There should be battery voltage on Orange when the engine is running, and zero volts when the engine is off.

    If Orange has power all the time, then the LR voltage regulator module may need to be replaced.

  3. #3
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    Welcome to Green Hulk

    Disconect the battery overnight,see if it loses it's charge on it's own,you could have a bad battery.

    If it's OK overnight,you will need to test as K has suggested. Also make sure the ski is charging,should be atleast 13.5 while running.

  4. #4
    -tC tcschrader's Avatar
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    Thanks for the quick replies guys!, I'll check that and post back

  5. #5
    -tC tcschrader's Avatar
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    Quote Originally Posted by K447 View Post
    Welcome to the Hulk

    Check my signature for links to service manuals and other useful info.

    I would start by checking the voltage on the Orange wires in the electrical box. There should be battery voltage on Orange when the engine is running, and zero volts when the engine is off.

    If Orange has power all the time, then the LR voltage regulator module may need to be replaced.
    Would this also effect the temp buzzer and make it go off at weird times when riding, because i've been experiencing that also.

  6. #6
    -tC tcschrader's Avatar
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    oh and i also forgot to mention that when i touch the multimeter to the ground and orange post in the electric box it shows a reading of around .176, would this be enough to drain the battery as much as stated?, and when i had the ski running the voltage at the battery posts read around 13.3/13.4

  7. #7
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by tcschrader View Post
    Would this also effect the temp buzzer and make it go off at weird times when riding, because i've been experiencing that also.
    Are you sure the engine or exhaust is not actually overheating?

    You should be able to hold your hand on the top or side of the engine and the main exhaust manifold for several seconds without pain. Something like;
    1-2-3-4 ... YES, it is quite warm, but I did not burn my hand!

    If it is hotter than that, something is wrong. Open the housing and check the thermostat and bypass plunger for clogging. Details are in the service manual.

    If you are sure the engine is not running too hot, then follow the Tan wire from the temp sensor back to the electrical box. Look for any place the wire may be rubbing or shorted to the engine.

    If that all looks good, open up the electrical box, and make sure everything inside is dry, clean, tight, and nothing is crushed or shorting.

    If still nothing obvious, unplug that Tan temp sensor wire from the terminal board, tape it up, and see if the warnings go away. If yes, replace the sensor.

  8. #8
    -tC tcschrader's Avatar
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    LR 21 Regulator/Rectifier or the LR 52 Switch/Rectifier?

  9. #9
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by tcschrader View Post
    ...when I touch the multimeter to the ground and orange post in the electric box it shows a reading of around .176, would this be enough to drain the battery as much as stated?,

    and when i had the ski running the voltage at the battery posts read around 13.3/13.4
    A small fractional voltage on Orange like .176 is nothing to worry about, when the engine is not running.

    13.4 volts while engine is running is OK for charging voltage. Not great, just barely OK.

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by tcschrader View Post
    LR 21 Regulator/Rectifier or the LR 52 Switch/Rectifier?
    For what?

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