I just bought a 2002 Grizzly and took it out for a ride in the mountains and is started cutting out in higher elevations. I was just wonder how hard it is to rejet the Grizzly I have done many sport atvs, but was just looking for a little info Thanks

 

try the search feature,,,there are alot of threads on it for the Grizz

 

You would be a good candidate for a Thunder Products valve. They can be closed at lower elevations and opened at alltitude. Do a search on the web for this company.