1996 Xp 800 stop when hitting a wave or randomly stops.
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Ckrawiec
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LOOSE electrical connections...not LOSE connections....23 year old ski, she needs love and attention...check everything for loose connections, rust, corrosion, etc....
Weak spark....could be ignition coil sure.....
why do you ask? @mikidymac
I changed spark plug boots then it got a little better but i still thinks its pretty weak. Also worth mentioning is that when i go full throttle it goes maybe half throttle then all of the sudden full power comes after a bit. Carburetor? Or could it still be weak spark?
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First, I would check all your grounds, starting of course at the battery, try to wiggle the cables at the battery posts. Then, inspect your rear electrical box, water gets in there and can corrode connections. Next, check the front electrical plug, for corrosion, male and female connectors, you may need a mirror, and also pry off the orange cap, that will allow you to see if the female connectors are corroded. After that, take resistance measurements of the trigger( pickup) coil. It is not unusual for that pick up to be cracked, and or loose, and when you hit a wave, it stops the signal and therefore spark.
Ckrawiec
Well-Known Member
Quickly and simply (and I believe this info to be fairly accurate).....there is a pickup coil inside the engine cover that is getting a signal from the stator...that signal gets to the ignition coil (in the rear electric box - typically on a white wire) to fire the spark plugs. I have been informed that BOTH spark plugs fire simultaneously (a wasted spark system).
Since you say that the ski does run, albeit with shutoff issues, you are moving away from the spark/ignition coil as a potential problem candidate (BUT not entirely...there could still be issues there, of course)....you also state that the ski is "bogging" on the throttle....THAT typically puts us into the carbs.
Everything really has to be working in sync....fuel, spark, etc...for these machines to perform well and consistently....they ARE labors of love sometimes....frustrating OFTEN!
I did clean out the jets but maybe not correctly? But could it be not enough spark to ignite all the fuel? Could that be the reason for the bogging problem?
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@mikidymac @Ckrawiec see comment over, could that cause the problems?
I had the exact same problem as you are having with a 96xp hitting waves and shutting off. I also had just replaced the MPEM. You know what it was....the ground wires inside the grey box (where the mpem resides) that bolt down to the grounding posts/grounding plate (inside the grey box) were loose. The nut on top of the ground post wasnt tight and when I hit a wave the grounding wires and their ring terminals would slip/move/whatever and the ski would shut down. Then it would start back up.....and the next "bump" or wave would shut it back down. Took me a while to trace it down to the loose grey box ground nut. Check yours....maybe its the problem.... maybe not.
No loose connections but ... see for yourself that ground wire may cause some issues? and some rust on that coil.
I've been thinking a bit, could it be the rectifier that is bad?
I've been thinking a bit, could it be the rectifier that is bad?
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