Join Date: Dec 2009
Location: central mississippi 39180
well, is there a particular reason you clocked the secondary spring to B-3? the bike will run better and shiftout better in the sand with it at the stock B-1 setting. the B-3 setting increases the spring rate on the secondary, which allows the secondary to close shut and snap back shut faster giving you a quicker backshift. the only folks that really need a quicker backshift is those folks in mud racing running huge tires that bog the engine down. they want the engine to backshift faster so when they are hard in the throttle and get out of it, and get right back in it, the secondary closes shut super fast to put them back in the lower gear when they nail the throttle again. in the sand, the sand slows you down enough, and the engine backshifts plenty fast enough on its own using the stock B-1 setting. so why exactly did you clock the secondary?
with the secondary at the factory B-1 setting, using an 18-19 gram roller setup will get you to your 5500RPM shiftout like you want. you said you have 2-4 gram heavier weights? so that means you have the green 23 gram weights in the primary now? you need the red 19s or you can lighten up a set of the blue 21s by drilling holes in the metal sleeve in order to lighten up the mass of the roller. getting a set of 18 gram rollers, or 19 gram rollers in the primary will get your RPMs up to where you want to be.
i still reccomend going back to the B-1 setting if i were you. clocking the secondary spring will wear the clutch shoes under the helix out super quick, this will cause you a slow delayed upshift and a very slow backshift.