[jbauld]

I have a 2007 Bearcat 660 Turbo, and recently when i let it idle or after starting it up the engine revs up and then goes back down constantly. Its very fast, it will rev up and down and then back up within a second or 2. We replaced the throttle positioning sensor without any luck. Any ideas? If someone would like a video of the machine idling just let me know and i'll email it.

Thanks

 

[Bearcat660mb]

Mine is doing the same thing what did you find wrong

 

[jbauld]

Possible Fix

Hey there, i was told it was the throttle positioning sensor which was change and it didn't seem to help, in some cases it did help from the tech i was talking to. Another possible solution is the switch in the throttle on the handle bars that is a safety switch incase the throttle sticks open. If you wants pics let me know and i'll get them later. I used to push the bottom on the switch on the throttle on handle bar and the engine would shut off.... don't just disconnect this as its for your own protection.