Hello all, I am new to this forum. I bought a Brute Force and I'm having the same needle jet problem a lot of you all are having. I ordered the Dynojet stage one kit and was wondering if anybody here has tried it, if so how do you like it. Does it make a noticeable difference in power and cure the lean condition? This is the first atv I have owned in seven years, and I love it. I never thought a utility atv could have this much power and handle so well.

 

I installed the Dynojet kit last night. It totally cured the stumbling caused by the lean condition. The engine revs out perfectly. I haven't had a chance to really test for performance gains but after a few late night drag races against a Grizz 660 and a Scrambler 500 I can safely say performance wasn't lost but any gains were small. This may change,however, because I haven't had a chance to check the spark plugs to verify the jetting is correct. Also, I'm still running the stock air filter and exhaust and changing these I think would amplify the jet kit's effectiveness. Hopefully I'll have time to check the plugs and fine tune tomorrow. I'll let you know how it goes!

 

Okay thanks