Have any of you guys had this issue? I just got the thing. I was riding in slow and technical situations. It was about 50 outside. I had heard this was a prob on the 660's. I wwould have thought Yamaha would have fixed this. Would wrapping the exhaust in header tape fix the problem? Not really sure how to fix this one.

 

I have owned three Grizzly 660s and a Grizzly 700, and have not had this problem with any of them. But from what I remember about this problem on the 660s, it seemed to be a problem that was exacerbated by low vapor point fuel, such as E85. You may want to change gas stations.

 

I agree with desert viper, none of our grizzly's had gas boiling problems, maybe try different fuel.

 

Mine was a little hot at first, but snapped out of it.

 

I've heard of this happening on a few of the 700's. Some say it's due to a poorly venting gas cap. Other say it's because they run a bit lean from the factory.