Thanks for the response. I think I will do that and try to lean out the needle jet. I will buy P-6 and P-4 just in case. I will start with the clip on the middle position and see how it will ride. I do a lot of dune riding, I need the power to open up when I either hold the clutch and giving it and letting go of the clutch or by just giving it WOT and I supposed to get the power gradually to climb the dunes . Anyway thanks Ducman and I will keep the forum posted.