I downloaded both the owners manual and service manual when I got the bike. Iíd never heard of an issue like that before either, though I am brand new to bikes, but evidence suggests thatís at least a known issue with Vstars. On the 1100 at least you just pop off the crankcase cover and itís right there. Back out the bolt, clean it, put on a drop of locktite, and crank it back down. On the 650 it looks to be in the same cavity as the gears, but the same ease of fixing once you get to it.
Ď06 Vstar 650