1998 Yamaha 1200 XL Fuel Issue/Lean Runaway
Need help. I have a 1998 Yamaha XL 1200. I got it from somebody who just gave it away(said it was taking up space) it sat for a few years. He did carb rebuilds and broke the throttle cable. I replaced the throttle cable. Buttoned everything back up, and attempted to start the ski. It Just cranked wouldn't turn over. I took out the plugs and tested for spark all good. Dropped some pre mix gas into the cylinders. Then started it. It Ran for a few seconds then cut out. I reset all the carburetors to their factory settings. I primed the fuel lines with low psi into the return on the tank until it was flowing bubble free on the carb end. I Buttoned it all back up again and started it and it ran for about 10 seconds then I shut it off to take it outside and put water on. Once I got it outside I noticed the number 2 carb pump was leaking fuel, as well as the fuel petcock valve was leaking. I removed both and dissembled them cleaned them and put it back together. I re primed the lines and then started it. The ski started, and then I cut it off to get the water ready again. Once I started it again I got a lean runaway condition, the ski wouldn't shut off until the fuel line was pulled off the carb. Posting to see if anybody has ideas/similarities? I'm assuming it's a carb issue? Crank seal is another possibility, hopefully not the issue. I've gone through all the fuel lines theres no tears or rips. I also double checked the throttle position to make sure it wasn't sticking. There's a little more than 1.5mm clearance at resting position between the valve and the wall in the carbs. I have not done a leak test yet. Hoping it won't be a difficult fix. Open to suggestions/ideas.