99 xp ltd appears to have a short.

[toolmaker]

Here is what we have. Had a problem originally with my Magnito, it broke a bolt head off the flywheel and tore up the magnito (shorted out). I fixed that problem with another magnito, sensor coil and new plug that goes through the case. All wiring is good in the magnito. I noticed a small short nothing enought to blow a fuse. It will discharge the batt over night. If I unplug fuses one at a time, with an ohm meter on the battery terminals, here are the results. 15 amp fuse with the 2 spark coils is good. The fuses in the Memp starting at the top one and going down are No change, No change, and the 7.5 seems to change the short to not there. This fuse is acording to the book Memp fuse. Can this be a soder problem or what. The thing I believe will still start it just frys the batt over time. The book also says to look at the regulator (not sure where this is other than the Memp itself. I am still trying to get this going by next week end. I have also noticed the gas gage and the speedometer do not work. If I unplug the gas gage and the speedometer there is no change to the short. Thank you for any help in advance.
Toolmaker

[Technical Support]

Re: 99 xp ltd appears to have a short.

I think the regulator/rectifier are built into the mpem on your ski, this could be failing. If you check battery charging with a multi meter with the ski running what do you get?

[toolmaker]

Re: 99 xp ltd appears to have a short.

Before I laydown 1100.00 is there a way to prove it is the regulator rectifier? With out toasting my new stator coil. I found a broken wire in the old one after a bolt head on the flywheel broke off. Stopped the ski, then I pulled it apart in the water and picked the bolt head and scrap metal out of the mag/ stator, with here is a good tech tip (silly putty) pulls it out of the magnetic area great. Here are some more readings Checking plug #3 on the plug to ground and pins 3-1 show .033 ohms, 3-2 shows .000 ohms, 3-3 .194 ohms, 3-4 through 3-8 inf ohms, 3-9 .010 ohms, the rest are up to 23 are inf ohms. I am going back out to check 3-26 here in a min. When I plug the VTS 6 plugs in the back that realate to the ones showing resistance. If the rectifier/ regulator is bad shouldn't it blow one of the fuses in the Mpem? I thought that is how the stator/magnito is protected? If I don't have to burn up another stator/ Magnito ($$$) I would like to keep this one, I like the color it matches my stiletos and thong (I prefer to wear it backwards, because I am a radical). Please dont take any of this a a stab. I do apricate the help. I am trying to figure this thing out and none of it is making sense. I burned up a stator in a Kaw about 6 months ago because the stator was bad ($95.00) (outch). Let me know how to prove it is the rectifire/ regulator with some test. Shouldn't I be able to get a reading for that off of the magnito plug in the front of the motor and to ground or something for a Ohm reading?

[Technical Support]

Re: 99 xp ltd appears to have a short.

If you can start the ski then check charging voltage at the battery, the stator wires, you should have 3 yellows, check yellow to yellow to yellow all should have the same readings, if so the stator charging is good. Do you have a service manual for this ski?

[toolmaker]

Re: 99 xp ltd appears to have a short.

3 yellows check zeor ohms across all 3, and the 2 pick up wires to the sensor coil also checked zero ohms. The stator coil I bought off of ebay must have a charging problem even though the readings are good above. They said at the dealer there are several funny readings during the running test on the output. I have replaced the mpem with a new one. I unplugged everything and still had the short. I tested the same way with the mpem and now no short. Just a charging problem now. I have a new stator on order should be here on Monday. Thank you for the help guys. Toolmaker

[toolmaker]

Re: 99 xp ltd appears to have a short.

Ok now here is where we are at. New Mpem, new magnito, and still a .137 short checking across the batt terminals with no batt! The short goes away when I unplug the #3 connector on the Mpem. Following that I unplug the connector going into the solinoid box (#3 plugged back in) no short,. Then I plugged it back in, and unplug the 15 amp fuse it goes away. Keep the fuse unplugged and run an ohm meter from the fuse to the #26 pin on the #3 connector and 0.00 ohms no short. I checked the solinoid connection to the batt wire no short. I checked the other side of the solinoid to the #26 pin on the #3 connector and no short (calble is good). Where is the SHORT? I have thrown all the money at this that I am going to throw. Even a dealer said it was the Mpem. Someone needs to help me find this problem soon, I am running out of hair and looking for bullets.

[toolmaker]

Re: 99 xp ltd appears to have a short.

Ok, new mpem in and still .138 ohms of resistance on the meter checking without a battery across the + and - wire. What should I get before I unplug everything again or is this a good reading? Someone with a 99 xp ltd please tell me .138 ohms on a digital ohm meter. Someone go to the garage and let me know what they get. Just take the batt out of the loop and check the ohms. Let me know what you get. Thanks for the help.

[toolmaker]

Re: 99 xp ltd appears to have a short.

Ok, nobody wants to check there ski or knows what the reading should be. I found another ski and it checks .134 ohms. It is good and runds good so I think I must have found the short earlier. In the gas gage sensor or the speed sensor. All I know is I guess I should plug it in and try again. I am putting it the old MPEM for sure though. Any thoughts?