Hi all,
New here - just bought my first bike, a 1980 R100 RT !
The bike looks and sounds great, but I noticed right away that the bite-point on the clutch was very high, with almost no room left on the handle lever.
After my first ride (once the bike was in full operating temp) the clutch wouldn't disengage, and I couldn't shift into 1st without lurching forward, or killing the bike.
I did lots of digging through the forums, but I still have questions, so please bear with me. Here is what I did:
1) Adjusted the clutch mechanism to the correct specs. The only difference was that now the whole bike vibrated heavily once the clutch lever was pulled. Oh, and the shift linkage broke because of my attempts at shifting without a clutch.
2) Replaced shift linkage.
3) Lubed the splines (no rust detected), the push-rod piston, and bearings. Both seemed to slide off of the back of the transmission fairly easily, thought they were a little harder to slide back in. While cleaning the splines, I also tested the push-rod for stickiness, and it moved back and forth from the back of the transmission through the end of the spline shaft with ease, so I assume that the rod isn't bent or broken (please correct me if my assumption is wrong).
After the lube job, the vibration seems to be mostly gone, though the engine revs still go down a little bit when I pull the clutch lever. The lever now feels harder that to pull, and the clutch still won't disengage.
Questions:
– Sounds like the pushrod piston and bearings need to be replaced (or lathed)... But like I said before, I was able to remove them easily. I can see the piston moving back and forth, but it doesn't look like much, maybe 2-3mm. How far does the piston normally travel? How would one sand down the piston without a lathe?
– The clutch cable looks healthy, but could it need replacement? If so, can someone explain why? Stretched cable?
– How stiff is too stiff for a clutch lever on an airhead?
– Do I need to replace the whole clutch kit (pressure plate, clutch, springs, etc.)? From what I could see, it was pretty clean in there - no shards, grime, gunk, or rust.
– Any other suggestions or ideas?
I was a little discouraged that this happened on my first bike - on my first ride - but it's apparent that the airhead community is strong, so I'm hoping you guys can help me !
Thank you in advance!
New here - just bought my first bike, a 1980 R100 RT !
The bike looks and sounds great, but I noticed right away that the bite-point on the clutch was very high, with almost no room left on the handle lever.
After my first ride (once the bike was in full operating temp) the clutch wouldn't disengage, and I couldn't shift into 1st without lurching forward, or killing the bike.
I did lots of digging through the forums, but I still have questions, so please bear with me. Here is what I did:
1) Adjusted the clutch mechanism to the correct specs. The only difference was that now the whole bike vibrated heavily once the clutch lever was pulled. Oh, and the shift linkage broke because of my attempts at shifting without a clutch.
2) Replaced shift linkage.
3) Lubed the splines (no rust detected), the push-rod piston, and bearings. Both seemed to slide off of the back of the transmission fairly easily, thought they were a little harder to slide back in. While cleaning the splines, I also tested the push-rod for stickiness, and it moved back and forth from the back of the transmission through the end of the spline shaft with ease, so I assume that the rod isn't bent or broken (please correct me if my assumption is wrong).
After the lube job, the vibration seems to be mostly gone, though the engine revs still go down a little bit when I pull the clutch lever. The lever now feels harder that to pull, and the clutch still won't disengage.
Questions:
– Sounds like the pushrod piston and bearings need to be replaced (or lathed)... But like I said before, I was able to remove them easily. I can see the piston moving back and forth, but it doesn't look like much, maybe 2-3mm. How far does the piston normally travel? How would one sand down the piston without a lathe?
– The clutch cable looks healthy, but could it need replacement? If so, can someone explain why? Stretched cable?
– How stiff is too stiff for a clutch lever on an airhead?
– Do I need to replace the whole clutch kit (pressure plate, clutch, springs, etc.)? From what I could see, it was pretty clean in there - no shards, grime, gunk, or rust.
– Any other suggestions or ideas?
I was a little discouraged that this happened on my first bike - on my first ride - but it's apparent that the airhead community is strong, so I'm hoping you guys can help me !
Thank you in advance!