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Thread: 2001 slx 1200

  1. #1

    2001 slx 1200

    Just got done rebuilding a 2001 1200 slx, bored cylinders and new pistons rings and so on.

    Got it all together and cant get it to spark or turn over. Everything is good measurement-wise and stator readings were all good. Getting stumped and think it is something in the cdi box?

    I can have the plugs out and the thing turns over to beat hell, but once I put them back in it will hardly turn the crank. Shouldn't be the batttery if I have it jumped off a running atv right?

    Anyone have any readings and how to get readings from the cdi box and ign. coil if possible?

    Any help would be great this thing is getting the best of me so far. Thanks
    Last edited by K447; 06-29-2014 at 08:01 AM.


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Do not jump the watercraft with an external battery. Electrical voltage spikes can fry the PWC electronics.

    Install a proper battery in the watercraft. One that is strong, preferably a new sealed AGM Deka ETX16 battery.

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    Do not ever jump one of these from a running vehicle!!!!!!!

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    That being said, just getting a new battery wouldn't make it have spark.

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    Did it run before or did you buy it broken?

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    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by tld83 View Post
    ... cant get it to spark or turn over...

    I can have the plugs out and the thing turns over to beat hell, but once I put them back in it will hardly turn the crank. Shouldn't be the batttery if I have it jumped off a running atv right?
    ...
    First you need to get it cranking properly with the spark plugs installed.

    That requires a strong battery and clean, solid electrical connections. Jumper cables often have resistance that causes weak voltage at the starter, along with potential voltage spikes that can damage the watercraft electronics.

    Hence the advice to install a proper battery. If cranking with spark plugs installed is still too slow then remove both ends of both battery cables, especially the engine ground end of the black battery cable.

    If you machine has the start solenoid mounted outside the electrical box, check which version of the solenoid you have. The original external solenoids are known to corrode internally and fail, sometimes suddenly. These solenoids can be identified as having a black body color and a metal backing plate. If you have this type of external solenoid, replace it. The newer design is all plastic with no metal plate, much more reliable.

    If battery is strong, solenoid is good, and cables have been removed and checked, that leaves the starter motor as suspect.

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