I have a 98 Grizzly 600, I have completely gutted and replaced everything in the carb. It runs fine for about 20 or 30 minutes but after it gets hot it starts flooding. The overflow tube has a constant drip of gas coming out when it's hot. If I let it cool for about 30 minutes and crank it, it runs fine again. I don't understand what the problem is. Any ideas?

 

stuck float or worn out needle seat. strange though.. boiling gas maybe?

 

Yeah, I thought it might be something with the float but it's all new float, needle, gaskets, etc. Someone told me it might be vapor lock which I guess is what you are referring to about boiling gas. If that is the problem, what is the solution? Some kind of heat shield around the carb?

 

have you checked the choke to see if that is operating properly?

 

At a minimum, it sounds like your float is adjusted a bit too high, causing flooding, and dripping out the overflow.

 

Yeah, I thought the float needed adjustment, but it doesn't flood or run out the overflow until it gets hot (after running at least 20 to 30 minutes). I'm absolutely confused. I guess I'm gonna have to take it to the dealer and let them charge me and arm and a leg to figure it out, ha.