having an electrical issue need help

YZViper366

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Joined
Jun 23, 2011
Messages
349
Age
33
Location
Bismarck, ND
Hello,
I have a viper mountain and when I start it everything starts and runs fine. But, when I hit the brake my speedometer turns off and resets, my headlight dims and my egt gauge resets. I have bar risers and I did have to extend my wiring harness cables I checked to splices and they all seem fine. All the tail light connections seem to be connecting just fine. I unpluged the connection from the brake lever to the tail light and then everything worked as it should. But, as soon as I plug it back in it goes back to diming lights and reseting my speedo . Anyone know what's going on I can't figure it out.
 

My headlight dims as well and I think has reset a time or two before when I hit the brake. Interested in what this could be also.
 
Thats what mine did when the stator went bad. You will start losing power after a while.
 
IS there any way to test the stator. Also could it be the headlight relay? I tested the relay and it doesn't seem to be right my results were .000 low beam .052 and .000 for high beam ohms . But am unsure if I had the ohm meter set up right. I am just trying to rule everything out before I go buy a stator and it end up not being the problem
 
Signs of wire harness rub throug also. Very common. Do a search, tons of reading and how to go about checking it. It usually rubs through under the enging so it needs to be pulled to check it. http://www.totallyamaha.net/forums/showthread.php?t=81561&highlight=rub Did a quick search for "rub through" and found this one. Its for a SRX but all the same theory. could also be a rub through under the gas tank for the break light harness. Chris
 
The way it seems it seems to be a stator issue. I started the sled and reved the engine to 4000 rpms and hit the brake and the speedo stayed on but the back light dimed quite a bit as did the headlight and tail light. Then I turned on the high beam and reved it up and the speedo reset and did the rest of the things I mentioned. I also turned the grip warmers on and reved it up and it did the same thing as it did with the high beams on. Now does that sound like a stator issue or a rub through? I am leaning towards a stator? Let me know what you think so if it is a stator I can buy one right away before we get some snow here in ND as of now there is nothing but grass haha.
 
Funny thing is I just came inside after replacing a stator on my viper. It was doing the same thing. After I replaced it, the issues have gone away.
 
Hmm. Mines ok when I rev it. Is it normal for just the headlight to dim a bit when you grab the brake? I havent owned mine for long. Kinda thought it was normal.
 
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My Mnt Viper did the same thing a couple of years ago...gauges reset when the brake was hit, and also when switching from high beam/low beam. Head lights dimmed also, and if the hand grip warmers were on high it had a bog in the mid range. I checked the harness in all the usual rub spots: under the motor, handle-bars, and under the tank and seat all the way to the tail lights, all were fine. Bit the bullet and got a stator, takes a flywheel puller, which I was able to borrow from the local dealer. Also have to be very careful with the phillips-head screws in the stator, they strip very easily. All of the above symptoms went away after new stator was installed.

I just read a post by snowdad with instructions on how to check the stator, I'll look it up and post what he said, but I'm 99% sure a stator is your problem.

Okay, here's the instructions for testing the stator by Snowdad:

"do you have access to a quality multimeter? this is the first thing you will need. next thing to know is that the ohm specs for the stator are based on a temperature of 68*F.

those three white wires you see actually are coded with a colored stripe. look closer, you will see one with a red stripe and one with a green. the third is all white.

if you attach the + from the meter to the white/red and the - to the white/green, you should see 189-231 ohms resistance. next attach the + to the white wire and check between it and the other two wires and you should see .36-.44 ohms resistance."
 
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Sounds like stator. Do search spend some time on here very common as they have superceded the part number to a new one.
 
I ordered a new stator I am pretty positive that is the issue ill let ya know what I come up with when I put it in. Thanks for everything guys
 
Hey guys thanks for everything I put the stator on today which was the easy part. Getting it off was not fun at all those Alan wrench screws are a joke. BUt I got everything together and now everything is like new again.

THanks again TY!!
 


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