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  1. #1

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    1994 sl 650 No Spark

    I purchased my Polaris ski this winter knowing it had some electrical issues. After doing the resistance tests i determined the stator was crap. Upon removal my thoughts were confirmed as 3 of the wires had been burned through. I replaced the stator with a new one, But still had no spark. Did all the resistance tests again, and they all passed this time. With the ski the guy gave me two CDI modules so i swapped them out and got spark. It even ran for a second or two when i primed the carbs with premix. But now I lost spark again. Could it be a possible grounding issue ? Any ideas would be great. Thanks


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

    Make sure the battery is delivering enough voltage while cranking.

  3. #3
    txunique's Avatar
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    is the battery cover in place between the battery and ebox from what i've seen/heard it not being there will cause the battery to short to the ebox buring up those stator wires

  4. #4

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    The battery is new and measures a solid 13 volts. And Yes the cover is on the battery. i always triple check that :P

  5. #5
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Welcome to the Hulk.

    Check to see if the kill switch is grounding out.

    Make sure the ground cable is clean and tight on both ends of the connection.

    What are the numbers stamped on the CDI's you have?

  6. #6

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    I have the kill switch unhooked right now from the CDI Module i read that unplugging it will eliminate the possibility of it being the problem, is that true ?

    Both CDI boxes read F8T16274 (which according to my repair manual is the correct Number)

    The only ground that i know of is from the battery to the mounting plate for the engine, is there any other grounds that i should be aware of and test ?

    Thanks a bunch for the help.

  7. #7
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Yes, that will eliminate the kill switch as a potential problem.

    Those are the right CDI numbers for a 94/95 650

    Only external ground is at the engine plate. make sure that's clean and tight. (no corrosion or paint between the cable and engine plate)

    Also make sure the grounds inside the elec box are clean and tight.

    Any signs of water or rust present inside the elec box?

    Can you test your CDI's in a KNOWN good ski?

  8. #8

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    The Inside of the Elec box is clean and rust free.

    I went over all grounds inside the box, and the outside again.

    I dont know anyone who has a Polaris jet ski, let alone a 1994 sl 650. Haha

  9. #9
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    OK.

    Have you ohm tested the coils yet?

    Have you tried cutting the plug wires back 1/4" yet? (most likely not the cause, but can help solve weak or 1 cyl intermittant spark)

    Can you post a pic of the elec box inside? Often we can spot potential issues with a picture.

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by Nic2011 View Post
    The battery is new and measures a solid 13 volts...
    Measure voltage while cranking the engine. Should be well over 10.6 volts.

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