1 New K100 owner - leaks, sprag clutch and strip down questions Mon May 29, 2017 2:37 am
MMWW
active member
Hi all
I recently bought an 88 K100 with 85k on the clock and no mot (been off the road for the past 6 months). The obvious issues are two oil leaks and the starter not ticking over all the time (common sprag clutch issue it seems).
Over the last week I've done loads of reading and non stop vids on these issues. I ordered a new main oil seal and relevant bolts etc to put the bike back together. Over the past two days I've been stripping the bike down.
Chris Harris videos on YouTube have been really useful for the strip down so far. The Haynes manual seems to miss most of the detail...
The rear splines and drive shaft look in excellent condition. Very well defined teeth and no burring or shredding, really chuffed given the price I paid for the bike.
I've taken out the 6 gearbox housing bolts as I'm attempting to get to the main rear oil seal. I removed the two bolts holding on the gearbox housing to the rear frame, however the housing wouldn't shift. Even with a jack bracing it there was no movement. Am I missing something here? Possibly the removal of another bolt? Or is it possible the housing is just being stubborn? As mentioned I've removed 6 housing bolts and two that mount to the frame. The starter and all other items have been detached from the housing.
My plan was to take out the gearbox, clean and lube the splines, then remove the clutch and then change the rear main seal... I'm expecting it to be a bit messy.
Where does the sprag clutch fit into this? I can't picture where it's positioned. I found the following link however not sure exavtly where the sprag is being pulled from with the bearing puller. Might be easier once I have the gearbox out! https://www.k100-forum.com/t4116-sprag-clutch-cleaning-the-sprag-clutch-and-bearing-replacement
Thanks
Mike
I recently bought an 88 K100 with 85k on the clock and no mot (been off the road for the past 6 months). The obvious issues are two oil leaks and the starter not ticking over all the time (common sprag clutch issue it seems).
Over the last week I've done loads of reading and non stop vids on these issues. I ordered a new main oil seal and relevant bolts etc to put the bike back together. Over the past two days I've been stripping the bike down.
Chris Harris videos on YouTube have been really useful for the strip down so far. The Haynes manual seems to miss most of the detail...
The rear splines and drive shaft look in excellent condition. Very well defined teeth and no burring or shredding, really chuffed given the price I paid for the bike.
I've taken out the 6 gearbox housing bolts as I'm attempting to get to the main rear oil seal. I removed the two bolts holding on the gearbox housing to the rear frame, however the housing wouldn't shift. Even with a jack bracing it there was no movement. Am I missing something here? Possibly the removal of another bolt? Or is it possible the housing is just being stubborn? As mentioned I've removed 6 housing bolts and two that mount to the frame. The starter and all other items have been detached from the housing.
My plan was to take out the gearbox, clean and lube the splines, then remove the clutch and then change the rear main seal... I'm expecting it to be a bit messy.
Where does the sprag clutch fit into this? I can't picture where it's positioned. I found the following link however not sure exavtly where the sprag is being pulled from with the bearing puller. Might be easier once I have the gearbox out! https://www.k100-forum.com/t4116-sprag-clutch-cleaning-the-sprag-clutch-and-bearing-replacement
Thanks
Mike