Im a newbie and have been out of sledding for quite a few years. Just bought a 1999 Yamaha Venture 600-triple
through an auction. It has 190 miles on it and looks very clean. Starts up just fine but will no idle unless the
choke is turned on and then off. Seems to run okay at rpms over 4000, but then will backfire when given throttle.
I have no manuals (yet) and have put new plugs and gas in it. The plugs are black after running it for just a few minutes. This sled probably has been sitting for over a year. I am pretty good working on engines, but I have never
worked on an engine like this. Any ideas where I should start. Also, what type of cleaners to use for the floats
and/or reeds. Also, when its idling without the choke on, it surges to ovr 2000 rpm then completly quits. Does that sound like an air leak to anyone? I have not been able to do a compression test yet. Any advice would be welcome, especially since I dont even know where the air/fuel screws are on these carbs! thanks