I have a 2000 Yamaha Grizzly 600. It lacks the power I think it should have. I installed an HMF exhaust, K & N filter, and a Dynojet carb kit. I used the needle jet and main jet that they recommened. The needle jet is set in groove #3 and the main jet is #DJ-138. I live in New Mexico at an elevation of 6000 feet above sea level. Could any one tell me if the jets are too lean or why it doesn't run well.
                Thanks,
             rondar