I have a stock zrt600, that I am positive nothing has been done to the clutchs. It only has 1200 miles , but I noticed last year it was shifting kind of different and it didn't have the get up and go that it used to have. I want to go through and redo the clutch springs, weights and the secondary also. Does anyone have a real hot set-up that won't rob me of the low end power I need for mountain riding?