I have a 2001 Yamaha XL800, It runs great with one exception. after riding approximately 20-30 minutes or longer, If I stop 20-30 minutes or longer, it will not just crank up and go. If Im lucky , I can feather the throttle and it will clear up and go. One dealer says its a vapor lock caused by heat escaping via the carburetor. Another dealer says its because the engine cools off so fast that I need to choke it when restarting it. Chocking doesn't solve the problem. Once it gets going again, it runs fine. What do you think.
Steven, It sounds like you have a bad needle and seat in the carburetor. When you sit for 30 minutes the seat leaks and can flood your engine and makes it hard to start. Get a carburetor rebuild kit.
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