$6500 - 2010 Can-Am Spyder RS-S SE5
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By Rmillerdesigns
Hello. I have a 2016 Massimo MSU 500. I was putting on a lightbar and i screwed up and didn't disconnect the battery so when i was taking of the positive cable to put on the power from the lightbar it sparked and now the utv has no power. I turn the key over and all i hear is a chirp. No lights or anything. Everything that comes from the battery to the jumper box up by the battery shows voltage but anything coming out does not such as to the winch or anything like that
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By jugliner
I have a fuel injected UT400 that will start and idle, but surges and sputters at higher speed. It has been sitting for 2-3 months and was fine when parked in garage. I assumed it was a fuel/air problem and pulled the throttle body and cleaned it up. I've ended up replacing the injector, IAC valve, MAF Temp Pressure Sensor, and fuel filter. I've also checked the spark plug, Still surging. I reset the ECU after every component swap.
I plan to pull the throttle body again and look evrything over for any visible leaks, etc.
Any suggestions would be appreciated on next steps. The problem developing after sitting makes me think it should be something simple, but I'm stumped. BTW the fuel was fresh and treated with Stabil.
Thanks.
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By BigToys
I'm posting this because I couldn't find any like issues, and I have never seen an issue like this in over 30 years.
I got the machine because it wouldn't start. It was only sparking on every 5th revolution. checked the crank position sensor, then 1 at a time cleaned and put dielectric grease on all connectors. I tried starting after each one. Finally it ran. Then after two weeks of starting it everyday, it went back to that spark every 5th revolution. Put in a new coil, and a regulator because it was dropping voltage to the battery while sitting. Of course I had a new plug, checked cam timing and chain, set both valves, and the injector was firing as it should with a perfect spray pattern.
I did a lot more troubleshooting and eventually it got spark every revolution, had great spray, and wouldn't even pop. Stayed this way. It was driving me nuts, wouldn't even pop with ether.
I pulled the trigger on a new ECM because what else could it be? Installed it and she fired right up, and is perfect now. Hope this helps somebody.
BigToys
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By Jamesshoop1
This was happening to me regularly with the original battery pack, I would drive a few yards and power cut to the motor, no error code, dash works, lights etc, just no drive. Brake lights not on so I don’t think it’s a switch thing. Sometimes it would go back to normal after a few day sitting in the barn. I ended up changing to lithium ion battery 100amp 48v and the problem completely went away for two months so I figured it was something worth the old battteries. Now it’s doing the same thing again, I’ve removed every main electrical connection, cleaned it good, and put it back together. Battery is at100 percent and good voltage. What is interesting is it doesn’t matter how much power I’m drawing, if I’m just creeping along in low or flooring it in high it stops after the same amount of time, about 7 seconds. If I let go of the acceleration right before the 7 seconds I can keep driving like that indefinitely but obviously that’s pretty annoying. Or if I switch immediately to reverse I can back up and go back to F without cycling the key. Has anyone else run into this? It really seems like a safety switch issue to me but unsure what else to check.
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