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Thread: JS550 no spark.

  1. #11
    PWCToday Regular pillazilla's Avatar
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    Re: JS550 no spark.

    Hi I have the multimeter now and will test these measurements asap.
    Stock 550
    440 with 550 top end - coffman half pipe, Porting, 440 pump, SBN 44, Hi comp Head.

  2. #12
    PWCToday Regular pillazilla's Avatar
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    Re: JS550 no spark.

    Do u have more detail about the stop switch relay... Is it possible to be shorting out and causing the plugs not to fire. I am just trying to understand the process of how it works.
    Stock 550
    440 with 550 top end - coffman half pipe, Porting, 440 pump, SBN 44, Hi comp Head.

  3. #13
    PWCToday.com Is My Home Away From Home
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    Re: JS550 no spark.

    Quote Originally Posted by pillazilla View Post
    I forgot to take the battery off the charger while it was hooked up.
    Can you explain this a little more?
    Riding mostly Lake Austin

    1984 JS440 -- 1989 650sx -- 1991 X2 -- 1992 750sx -- 1995 900zxi (qty 2) -- 1995 X2

    Quote Originally Posted by cujo View Post
    God intended PWC to be two strokes, as well as dirt bikes, snowmobiles, and chain saws....

  4. #14
    PWCToday.com Is My Home Away From Home wmazz's Avatar
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    Re: JS550 no spark.

    Quote Originally Posted by pillazilla View Post
    Do u have more detail about the stop switch relay... Is it possible to be shorting out and causing the plugs not to fire.
    I am just trying to understand the process of how it works.
    Kawasaki's are equipped with a stop engine relay. Without it you would
    need to hold the stop or kill button in until the engine comes to a
    complete rest. With the stop switch relay, all you need to do is touch
    the stop (kill) button for a moment and the engine will come to a complete
    stop automatically.

    Have you ever ridden a motocross bike? They are equipped with simple
    kill switches. If you hit the kill switch for just a moment, the engine quits
    for a moment, and then continues to run. The stop switch relay prevents
    the engine from acting like a motocross bike.

    Quote Originally Posted by pillazilla View Post
    Hi I have the multimeter now and will test these measurements asap.
    The ACV tests are more accurate. Ohm tests are based on a temperature
    range that includes hot engine coils.

    In order to get the best results from ohm tests, I heat the coils with a
    heat gun or hair dryer, and then ohm test the coils.



    Bill M.
    Horsepower == Speed, RPM != Speed



  5. #15
    PWCToday Regular pillazilla's Avatar
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    Re: JS550 no spark.

    Okay great! This is very helpful. Also I had broken a pin while trying to connect the 5 connections coming from the stator connecting to the E box. I pulled it out and changed them to male and female electrical connections with the nylon covering. Should have I used a small Butt crimp connecters instead. I guess the ACV test will tell me
    Stock 550
    440 with 550 top end - coffman half pipe, Porting, 440 pump, SBN 44, Hi comp Head.

  6. #16
    PWCToday Regular pillazilla's Avatar
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    Re: JS550 no spark.

    Quote Originally Posted by linkman View Post
    Can you explain this a little more?
    Hi I "boosted" my ski to start it while the battery was low once and then I let it run and didn't take the charger cables off it. Probably was on for a total of 30 seconds then everything stopped. I checked the starter connections and had my starter serviced put it back on and now it turns over great. Now...I can't get spark. I had a spare working E box and tried it and continued to have the same problem. While I was replacing the ebox I broke the pin one of the gray wires from the stator so now I have them connected with red male and female nylon electrical connectors.
    Quote Originally Posted by wmazz View Post
    Kawasaki's are equipped with a stop engine relay. Without it you would
    need to hold the stop or kill button in until the engine comes to a
    complete rest. With the stop switch relay, all you need to do is touch
    the stop (kill) button for a moment and the engine will come to a complete
    stop automatically.

    Have you ever ridden a motocross bike? They are equipped with simple
    kill switches. If you hit the kill switch for just a moment, the engine quits
    for a moment, and then continues to run. The stop switch relay prevents
    the engine from acting like a motocross bike.



    The ACV tests are more accurate. Ohm tests are based on a temperature
    range that includes hot engine coils.

    In order to get the best results from ohm tests, I heat the coils with a
    heat gun or hair dryer, and then ohm test the coils.



    Bill M.
    Stock 550
    440 with 550 top end - coffman half pipe, Porting, 440 pump, SBN 44, Hi comp Head.

  7. #17
    PWCToday.com Is My Home Away From Home
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    Re: JS550 no spark.

    If the method you used to boost it was with a booster that provided > 13 volts then you have a high probability the the CDI and/or rectifier have been ruined. If it's just a booster that provides 13 volts or less but with a 100 amp (or similar) cranking boost then it wouldn't do anything bad. You can't "force" extra current into the circuit that way.
    Riding mostly Lake Austin

    1984 JS440 -- 1989 650sx -- 1991 X2 -- 1992 750sx -- 1995 900zxi (qty 2) -- 1995 X2

    Quote Originally Posted by cujo View Post
    God intended PWC to be two strokes, as well as dirt bikes, snowmobiles, and chain saws....

  8. #18
    PWCToday.com Is My Home Away From Home wmazz's Avatar
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    Re: JS550 no spark.

    Quote Originally Posted by pillazilla View Post
    I had a spare working E box and tried it and continued to have the same problem. While I was replacing the ebox I broke the pin one of the gray
    wires from the stator so now I have them connected with red male and female nylon electrical connectors.
    There must be something wrong with how you tested the second e-box, or the spark.

    I am having problems understanding how a battery charger might fry the exciter or pulsing
    coils. Like Linkman said there is a high probability for the rectifier to be fried, but why the
    spark?? If it was a ground system failure, why didn't the wires fry after you tested for spark.

    I can see the possibility of a large negative voltage spike, but I still don't see why it would
    fry the exciter or pulsing coils.

    It seems more likely the gray wire connection is causing the problem.


    Bill M.

    I left out the CDI because I thought it would have been designed to withstand voltage spikes.
    Could Be Wrong
    Last edited by wmazz; 06-23-2015 at 08:40 PM.
    Horsepower == Speed, RPM != Speed



  9. #19
    PWCToday Regular pillazilla's Avatar
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    Brockville, Ontario, Canada
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    Re: JS550 no spark.

    Thank you so much for the feedback. I will get back to you fellas on this.
    Stock 550
    440 with 550 top end - coffman half pipe, Porting, 440 pump, SBN 44, Hi comp Head.

  10. #20
    PWCToday Regular pillazilla's Avatar
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    Brockville, Ontario, Canada
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    Re: JS550 no spark.

    Hi guys tried testing the AVC on my multimeter I guess.I have to admit I don't think I tested it properly I only got numbers under 0.
    Stock 550
    440 with 550 top end - coffman half pipe, Porting, 440 pump, SBN 44, Hi comp Head.

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