Mad Mike
Well-known member
I've dealt with this on dirtbikes a lot. Here are a couple of udeas:
1) close the tolerance on the splines with a layre of aluminum tape, the kind they use for furnace duct work (not cloth ducttape). Aluminum foil will work too.
2) Replace the shoulder bolt. The bolts stretch and threads distort, vibration loosens them. A dab of Blue locktite on the new bolt should work.
3) Check the spacing at the pinch opening, the metal can stretch and the tabs can bend. A little clearance is necessary to achieve full clamping force around the shifter shaft. If it's less than 3mm when clamped, use a small file on the unthreaded side to correct clearances.
Rather than wire tying, I use a longer bolt, after torquing the bolt add a stover nut as a keeper. No drilling required.
1) close the tolerance on the splines with a layre of aluminum tape, the kind they use for furnace duct work (not cloth ducttape). Aluminum foil will work too.
2) Replace the shoulder bolt. The bolts stretch and threads distort, vibration loosens them. A dab of Blue locktite on the new bolt should work.
3) Check the spacing at the pinch opening, the metal can stretch and the tabs can bend. A little clearance is necessary to achieve full clamping force around the shifter shaft. If it's less than 3mm when clamped, use a small file on the unthreaded side to correct clearances.
Rather than wire tying, I use a longer bolt, after torquing the bolt add a stover nut as a keeper. No drilling required.
