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Primary/Transmission/Driveline/ClutchFind answers to general powertrain, primary and transmission. Have clutch issues and need suggestions? Post them here.
Don't do 1/4 turn back off. Your big clutch needs 1/2 minimum. If you get it really hot, it could possibly swell enough and drag big time.
Disregard that clash engagement up off ground.
Plates are always soaked. Just not running in oil as you go down the road since fluid is spun around in a circle to the outer circumstances of primary.
Last edited by Jackie Paper; Jun 22, 2023 at 06:03 AM.
Not sure if it has anything to do with your problem but its cheap to change out the primary fluid to something fairly straightforward, like Formula Plus. Some fluids can cause the plates to tend to stick. Also make sure the shift linkage is free and has enough room to travel and engage the gears without contacting anything..
Shifting from 2 to 3rd on my bike is not as smooth as the other gears, unless I have the rpm's right and don't do a slow shift. They seem to like being slightly preloaded before one shifts. There is a difference between a cold bike and a fully warmed up one, when it comes to clunks etc when shifting the transmission. Fully warmed up mine shifts like butter and no clunks.
The video I posted yesterday, the bike was warmed up already.
I went and sampled the primary fluid after work today. Yesterday when I drained some, it looked pretty dark. The primary (and oil and transmission lube) were all changed on 04-21-23. This pic was today (didn't ride today). Used fluid has about 1500 miles on it.... this does not look right. New on the left of course
I once had a classic we where restoring and it was leaking transmission fluid. Replace pan gasket twice before discovering modulator spring had broken and cover had cocked letting fluid run down and appear it was pan.
I had purchased 2 cases of generic AutoZone ATF.
Fast fwd, I used it in a transmission oil change in a Honda. Honda's like there special oil. Within a year, it was hanging in low.
I drained it and it looked like that and was much thicker.
Since you said this was second time using oil, I doubt it just cleaned up primary from maybe Formula+ non detergent gear oil.
Either your stator is toasting it or your clutch is slipping.
The video I posted yesterday, the bike was warmed up already.
I went and sampled the primary fluid after work today. Yesterday when I drained some, it looked pretty dark. The primary (and oil and transmission lube) were all changed on 04-21-23. This pic was today (didn't ride today). Used fluid has about 1500 miles on it.... this does not look right. New on the left of course
Here's a thought. Could dirty primary fluid cause the clutch plates to "bind" a little to the point they weren't separating properly for clutch disengagement?
I'm going to change this dirty fluid out with new and try to flush the system out and see if that makes a difference.
Here's a thought. Could dirty primary fluid cause the clutch plates to "bind" a little to the point they weren't separating properly for clutch disengagement?
I'm going to change this dirty fluid out with new and try to flush the system out and see if that makes a difference.
Please Please Please throw us in the briar patch but whatever you do, don't take the clutch apart.
But if you do, you need an 0-1 mic or caliper to measure and put all the plates and those small Bellville shutter springs back in correct direction..
Check them all for flatness and wear. Compare to areas not worn. At around 30K I could measure no wear.
Last edited by Jackie Paper; Jun 23, 2023 at 10:39 AM.
Replacing clutch plates would be a step down the road.... but from what I've seen, it doesn't look that difficult. The difficult part would be finding them in stock somewhere. LOL As far as I know, these are the original clutch plates with 50k+ miles on them.
I noticed it in 3rd gear on the road a while back. But for a while it has been shifting loud in to first gear but never lurched forward. When I had the bike off the ground and tried starting/shifting (see video in earlier post) it was then that it looked like the clutch may be dragging. If I "time" the shift while riding, the hard shift is much less notable.
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