The petcock on my '98 vn800 seems to have a problem. The last few days the bike has been running very rich. It actually cut out 10 miles from home and wouldn't restart. I removed the air filter cover and there was fuel in the airbox. I cleaned it up and let it sit a while and was able to start it, but it didn't run well and idle was very slow. I managed to get home, but it would not idle. I have checked the vacuum line and it seems to be OK. I thought it may have been a stuck float, so I changed the position of the 'selector' from ON to RES and it seems to be running OK in that position. So I think the problem is the petcock. I also noticed that when the 'selector' is in the PRIME position there is a slight leak from the front of the petcock, but this is ONLY when on PRIME. It seems like some maintenance is needed, but I don't know what? I guess the leak can be stopped with a replacement 'O' ring, but what do I do to stop it 'flooding' the carb when it's in the ON position? Help!
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