1 bearing ?? Sat May 21, 2011 4:16 am
kartooo
Silver member
drove home my new to me 12k mile 1985 k100 a few weeks ago. as soon i left the driveway i felt what i thought was bad rear tire. like a bad cord on car tire.
the rear was a rdial michelin and the frt a bias perelli demon. the diff had a feel like a bad bearing. sure enough the large ball bearing had a bad inner race. i belive pitting from sitting.replacd it using original shims. the tapered bearing outter race and rollers looked and felt great. relaced the rear tire at the same time to match the frt. it had plenty of tread but a good amount of dry rot. all together and i now have what feels like a bad bearing when bike is level. the smallest amount of bank left or right all is smooth. when level all in nice. get up to 60mph or so and all is nice,pull the clutch in and coast down to about 40 and it back. spinning the rear by hand it fells good,seems to have nice pre-load. lifted the frt tire up and it seems smooth with no play. i feel it in the handgrips. feels to me like a frt wheel drive car wheel bearing,any small lft or rht turn all is fine. don't know if the new tire or diff. been a mechnic for 34yrs with a kazillion road tests under my belt,feels like a bearing....
the rear was a rdial michelin and the frt a bias perelli demon. the diff had a feel like a bad bearing. sure enough the large ball bearing had a bad inner race. i belive pitting from sitting.replacd it using original shims. the tapered bearing outter race and rollers looked and felt great. relaced the rear tire at the same time to match the frt. it had plenty of tread but a good amount of dry rot. all together and i now have what feels like a bad bearing when bike is level. the smallest amount of bank left or right all is smooth. when level all in nice. get up to 60mph or so and all is nice,pull the clutch in and coast down to about 40 and it back. spinning the rear by hand it fells good,seems to have nice pre-load. lifted the frt tire up and it seems smooth with no play. i feel it in the handgrips. feels to me like a frt wheel drive car wheel bearing,any small lft or rht turn all is fine. don't know if the new tire or diff. been a mechnic for 34yrs with a kazillion road tests under my belt,feels like a bearing....