Well usually I can figure out my own problems but right now I'm kinda stumped and I'm not sure where to look at...So here's the thing, the ski starts just fine and revs good on the trailer. Once in the water, it has no problem taking off but as soon as you go WOT, it's seems like spark is cutting out on and off...
My first guess was a bad rectifier so I unplugged the red wire and went for a drive. It worked flawlessly. Ordered a new rectifier and installed it.........the problem was still there. Unplugged the red wire and once again it worked fine just on the battery. At that point I thought it might be a coil/CDI thing or a DOA rectifier. So I swapped the entire front electrical box with the new rectifier in my other XP and guess what, everything worked perfectly, even with the rectifier plugged in...
So basically here's what I've tried so far:
- brand new rectifier (tested good on other ski)
- swapped entire front electrical box in another ski and it worked fine when the other ski was not
- swapped the rear electrical box coil from the bad ski into the good ski and it worked just as good
- removed the MAG cover and checked the pickup coil resistance and if it was still attached
- trimmed spark plug wires & installed new plugs
- compression is 150psi per hole
Now, since when i unplug the red wire at the rectifier the ski runs fine, it HAS to be an electrical problem, right?? The only 2 parts I haven't swapped are the stator and the pickup coil (although it seems good). Can a bad stator cause a weak spark at full throttle? the battery light isn't on btw... I don't want to ditch another 200$ on the ski if i don't have to....anyone got an idea??
My first guess was a bad rectifier so I unplugged the red wire and went for a drive. It worked flawlessly. Ordered a new rectifier and installed it.........the problem was still there. Unplugged the red wire and once again it worked fine just on the battery. At that point I thought it might be a coil/CDI thing or a DOA rectifier. So I swapped the entire front electrical box with the new rectifier in my other XP and guess what, everything worked perfectly, even with the rectifier plugged in...
So basically here's what I've tried so far:
- brand new rectifier (tested good on other ski)
- swapped entire front electrical box in another ski and it worked fine when the other ski was not
- swapped the rear electrical box coil from the bad ski into the good ski and it worked just as good
- removed the MAG cover and checked the pickup coil resistance and if it was still attached
- trimmed spark plug wires & installed new plugs
- compression is 150psi per hole
Now, since when i unplug the red wire at the rectifier the ski runs fine, it HAS to be an electrical problem, right?? The only 2 parts I haven't swapped are the stator and the pickup coil (although it seems good). Can a bad stator cause a weak spark at full throttle? the battery light isn't on btw... I don't want to ditch another 200$ on the ski if i don't have to....anyone got an idea??
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