Havenít checked the valve adjustment or the header gasket. I didnít adjust the valves after the rebuild, not sure if my dealer did either. The header gasket is new, dealer replaced it to try to solve the backfiring problem, but Iíll check it out. I havenít tested the winch both ways to make sure the winch is fine yet.
I rode the ATV 2 weekends ago and on the last day I went on a wet trail with several water spots, the highest the water went was up to the bottom of the foot wells. When I went to back up a trailer in reverse (this is after the ride, also a small utility trailer, empty) the belt/clutches were slipping. It wouldnít have enough power in reverse to back up the trailer. It did the same thing in low gear where it would act like the belt was slipping and would barely move the ATV. In high gear when you start moving the engine has to work a lot harder than usually to get going. I have moved the trailer before without issue. So something is definitely up.
I tried riding the atv this past weekend and it was still acting up. I thought that there might be some water or something in the clutch cover because of the wet trail but nothing came out of the drain bolt. So I took off the clutch cover and found that one of the bottom bolts was loose. You had to remove the footwell frame to loosen and tighten it. I think my dealer must have just not tightened it up? All the other bolts were torqued so so donít think it couldíve worked itself loose.
I had some trouble removing the cover, not sure if the bearing was stuck or the dowels. Anyway everything looks good. Belt not frayed, clutch cover bearing moves without any ďrough spotsĒ when turning. I started the ATV and tested Low and Reverse with the clutch cover off and the problem was gone. I put the cover back on and itís acting up again.
Is this just the clutch cover bearing? Maybe putting more load on the clutch?
I have the ATV at home now so I can work on it. Iím going to tackle the clutch problem first, then backfiring and then winch.
Also I noticed on the cylinder head, where it mates with the cylinder has some oil stains. I think this is just from assembly of the engine, but I will clean it off with brake clean and keep an eye on it.
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