As an experiment I have decided to try my luck at 65lb, after looking at the parts diagram I am starting to wonder if torquing to 80lb could infact cause that bushing to bow. I've had RM dirt bikes all my life, those just used C-clips to keep the front sprokets on, and the sprockets
because of this were never exactly truly tight. My line of thinking is, if it's vibration or lateral stress that is the cause for DR-Z's wearing second gears bushing, then how come it never happends on other bikes with similar drive shaft configurations?
"1 of the 2 test bushings started to bind on 2nd gear ID at 80 ft lb and the other bushing started to bind the gear at 100 ft lb. Both bushings were very tight to 2nd gear (would hardly turn) at 150 ft lb. Both bushings, even after the 150 ft lb test, seemed fine again at 50 ft lb"......After reading Nobles findings here, it's kind of hard not to think that maybe 80ft could be issue (even though he said it shouldnt be) I still just cant help but wonder, what if it truly is.
So with that said, I dont mean to stir the pot here by second guessing Nobles findings, I'm not. However after looking at the layout of the parts diagram it really has me cringing that that little bushing has to take all that compresion force
, combine that with the fact that "some" people do have them bind at 80lb. So I have decided to try my luck at 65lb with some blue "Loctite"...proper spelling this time
...and see how that holds up, it can't hurt just to try it. I'll let you guys know how it holds up at that torque after I get a couple thousand KLM on it.
Thanks again to everyone for all your advice.