I just picked up a vforce valve for my 00 kx250. I was wondering how it would affect the jetting. I remember someone saying that they had to go down 2 sizes on the main with a rad valve. Would a vforce have the same effect?
When I had my 2000 KX250, I installed the V-Force and I didn't have to mess with the jetting at all. Again, I was not running the stock jetting in the first place.
Try it and see how it work. Jetting is easy, just listen to your bike and take your time!
