I added this onto another thread initially, but thought it best to start a new one. I recently replaced the clutch on my '74 TX650A. The bike was new to me last summer, the clutch seemed ok but the bike smoked like crazy. I rebuilt the top end over the winter, but didn't touch the clutch. After only a few hundred miles this summer, the clutch was really loud and thrashy sounding under acceleration, so took it apart to find at least 3 steel plates warped. I also found that the main nut holding the entire basket on was not properly torqued down and was too loose. The basket was somewhat wobbly. I had not checked this torque. :-(
In neutral, the engine sounds great - no thrashy bad sounds.
I replaced the steel plates (6) and friction plates (7) and installed new needle bearing and thrust washer. When I replaced the clutch I noticed the gouging shown in the picture. The new clutch worked great but still a ticking sound under acceleration, but much less obvious. I rode it about 100 miles and took it apart again to confirm that the gouging hasn't gotten worse - but still have some filings in the oil. :-( I thought they were aluminum but a magnet picks them up.
The cush springs are all loose and rotate in place but all intact - 3 are thick and 3 are thin. The gouging is right in line with the cush springs.
TwoManyXS1Bs suggested I check the basket's inner brass bushing - it is confirmed 0.002 between steel bushing and brass bushing. All washers are the correct thickness and in the correct order. I haven't done the basket spin test yet, just because I wanted to ask the question about the cush springs first. The gears line up well.
What do you guys think about these cush springs? Could they be the source of the ticking sound under acceleration and is it best for these not to rotate?
In neutral, the engine sounds great - no thrashy bad sounds.
I replaced the steel plates (6) and friction plates (7) and installed new needle bearing and thrust washer. When I replaced the clutch I noticed the gouging shown in the picture. The new clutch worked great but still a ticking sound under acceleration, but much less obvious. I rode it about 100 miles and took it apart again to confirm that the gouging hasn't gotten worse - but still have some filings in the oil. :-( I thought they were aluminum but a magnet picks them up.
The cush springs are all loose and rotate in place but all intact - 3 are thick and 3 are thin. The gouging is right in line with the cush springs.
TwoManyXS1Bs suggested I check the basket's inner brass bushing - it is confirmed 0.002 between steel bushing and brass bushing. All washers are the correct thickness and in the correct order. I haven't done the basket spin test yet, just because I wanted to ask the question about the cush springs first. The gears line up well.
What do you guys think about these cush springs? Could they be the source of the ticking sound under acceleration and is it best for these not to rotate?