My Lemans 2 has had a spring added to the shift linkage to help bring it back down after an upshift. I just did a 1100 Km trip after insuring her. The bike misses shifts now and then. Sometimes after upshifting, I feel the shifter come back down and tap my boot. Can the gearbox be tweaked with the adjusting bolt and jamnut on the rear cover? Or does the cover have to come off, and the selector spring be changed out or wha??? :unsure: