Low Idle / Rough Running / Gas Smell
Two months ago, I purchased a '92 VN750 with a little over 7,000 miles on it from a friend. I replaced tires, fluids, foam air filters, etc. and the bike ran great. A ride on a cool Saturday morning was wonderful - engine seemed to run perfectly.
Sunday afternoon ride was different. Bike idles (usually) at just a little over the 1,000 RPM mark on the tach. I had ridden about 6 miles, came to a stop and noticed engine seemed rough. After another 10 miles, I came to a stop and engine was running rough and idle had dropped to less than half the distance between the 1,000 RPM mark and 0 (closer to 0) - and I could smell gas. I headed home. As long as I was running at least 55 mph in 5th gear, I kept moving, but any time I had to slow down or stop, I had to open the throttle to keep the engine up to 1,000 RPM.
Got home and let bike sit while still running. Idle was close to 0 on tach, then died. I could restart, but idle remained low. Started looking around and found that vent hose that runs from carbs to right air filter housing had small amount of liquid (presumed gas although smell wasn't strong) dripping out (just a drop or two). Haven't restarted since. Also noticed that circlips that (I think) hold throttle butterfly in place on right-side carb were damp, assumed it was gas.
Of course I am looking for suggestions as to the problem and a fix.