Originally Posted by Nihon Newbie
I've yet to take mine apart, but I think the preferred method is to put the wheel back on so you can wedge something in it, braced against the transmission case, to keep it from spinning while you take off the nut at the end of that shaft. I think there is another CH150 thread around here that talks about all that, as it's part of the same process you have to go through to get access to the clutch bell housing, and the roller weights in the driven face.
People have talked about needing an impact wrench to get that nut off...So be prepared to either use that or a breaker bar with the correct socket. Not something you want to round off, heh. Good luck!
I checked the roller weights last week, was able to get the nut on the housing off by wedging a long screwdriver through the fins on the cover and bracing it while I loosened the nut. They looked pretty good so I put them back and didn't replace them. I think it might be the shaft bushing and that's what I will look at next.