UnderwaterGrizzly
Posts: 7
Joined: 11/30/2008
Status: offline
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My nephew bought a new 08 Grizzly 550, has rode it about 3 weeks and drowned it!!... Hew knew enough to not drive it back to the trailer, engine, air box, fuel tank all full of water. Everything was drained, cleaned put back together. Disassembled and cleaned out all the crud in the belt drive. Fired the bike up, sounds and looks ok. Drove it and noticed that its banging out at approx. 20 mph in high gear. Put the bike in neutral and pinned the throttle, and it bangs out before full RPM. Does the F.I. use a manifold pressure sensor? I unplugged the small vacuum line on the R.H. side of the throttle body and it seems to rev higher. whether the line is unplugged or not, when you rev the engine, it picks up fuel smoke and bangs out. Theres no smoke idling or at part throttle and the engine sounds great. What is the sensor that I unplugged? Any help would be greeatly appreciated. I'm trying to fix it for him so he doesn't have to take it to the dealership.
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