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Hey everyone, I recently bought a VXR PRO from a guy that was going to use the engine in his stand up stunt ski. The ski would start everytime just with a quick push of the green button. So I take it to the lake to ride it for the first time and of course it won't fire up. It turns with the starter that's it! I took the plugs out replaced with new ones and nothing. I then found a black wire off the head that goes to the brain. It was cut in half. I repaired it. What is this wire for? I tried to turn over with the plugs out placed on the heads horizontally. For a few rotations of the engine I could see weak spark out of one plug then it stopped. Next I unplugged the black and white kill switch wires. No spark Currently I just took the 100 screws out of the brain in order to split the case to see inside. I haven't tested anything yet....I just really don't know what direction to go in so I'm reaching out to all you fine members for your expertise and suggestions. What would also be a big help is a service manual I don't even know the gap specifications!? Its got cold in Atl. Georgia but if I could get this Badboy running I'll throw my wetsuit on and ride out. When I was younger I wanted one of these machines so bad but couldn't make it happen. So when I finally got this beast at 43 I wanted to make it look new. The gel coat was real thin in some places you could see and feel the fiber. I gel coated the top deck and put new stickers on. I've got alot of time into this machine. My wife doesn't understand...Thank you in advance for any suggestions.
 

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If the wire is coming off the head, it might be the temp sensor. Make sure the battery is fully charged and good.
 

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Danster34
From the sounds of things the BLK wire from the head as Rods stated is your overtemp sensor.

I have a 93 & 94 vxr pro. Nice little play on ski.

PM me an email address and I can send you a copy of the factory manual. May take a day or two. Hunting season starting up Friday.
Clymer also makes a nice manual for them but there lumped in with several like skis from Yamaha. But still carries lots of good info
 
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