I've never had a fibre plate measure less than the spec. And I've never had a steel plate appear warped. But I've had a couple of cracked or broken fibre plates. I've replaced the springs on several clutches but not the big springs on the inner hub. I don't have the tools to change those.
In all the clutches I've ever replaced (or had out for other maintenance reasons) over the years, not once have I ever found a single metal clutch plate out of OEM spec. I've replaced the clutch diaphragm spring on both my Vulcans (those springs are a known weak point that lead to clutch slipping). In both cases, even the fibre plates measured well within spec.
Been a while since I replaced a wet multiplate clutch, a year ago. New gasket, 10mm socket, new friction plates and clutch discs, proper torque specs for the 7-9 bolts to torque it down. I’ve never replaced the springs. What viscosity of oil you running?
Ok. So I’ve ridden the bike about 300 miles. Today my grandson had a baseball game that I attended. When I left my garage, cold engine, I noticed a slight shudder as I engaged the clutch. Hmmm. I stopped and started again. No issue, so I went to the game. All seemed fine until I approached the parking lot. Leaving a stop sign, a pretty significant shudder upon clutch engagement. Damn. On the way home it occurred again with an accompanying significant rattle, which could have been the engine complaining about it. I’ve not felt this kind of shudder anytime in the past.
Should I just go ahead and replace the plates, discs, and springs? Are the parts at Vintage CB750 good quality? I guess I’ll need the special tool as well.
Only because I know there are many here who, like me, are incredibly thrifty. This is the guy who used to be on tv, he’s now got a bunch of riding gear from a closed down shop. Looks like a jacket in leather or synthetic for like,,,$30!!!!
Final blow out this weekend #upyourleather BLOWOUT! HELMETS, JACKETS, VESTS, GLOVES and MORE!!
Contacted Laverda specialist Wolfgang Haerter of Columbia Car and Cycle. He recommended Japanese electronics brand Shindegen as #1. He’s checking his inventory now.
I’ll be at coffee tomorrow morning, but driving instead of riding,,,,dog/house sitting sisters place, don’t have time to attend to dogs needs then grab a bike.