I noticed my clutch springs are getting rusty, about 7000 miles on them. I had it in for service and the clutch operates fine. Is it okay to replace the springs without replacing anything else? I was going to wait until the clutch needed work, but the clutch seems fine for now.
Absolutely. Probably just harmless surface corrosion and just a cosmetic issue. Go with aftermarket stainless springs if you want them to stay purdy. Be very careful not to overtorque the little bolts!
BK
Thanks for the reply, doing it mostly for peace of mind, and it gives me something to do.
Stainless springs typically increase lever effort.
Quote from: ducpainter on September 24, 2012, 11:38:51 AM
Stainless springs typically increase lever effort.
I've heard that sometimes the springs cause slippage. If stainless clutch spring increase lever effort, do they also decrease the likelihood of clutch slippage?
Quote from: Autostrada Pilot on September 24, 2012, 01:53:28 PM
I've heard that sometimes the springs cause slippage. If stainless clutch spring increase lever effort, do they also decrease the likelihood of clutch slippage?
Probably.
My dry clutch has never slipped with stock springs.
Yes, but that seems to be a problem on 620s. Some folk actually remove two springs on the dry clutch without slipping.
Quote from: howie on September 24, 2012, 02:25:14 PM
Yes, but that seems to be a problem on 620s. Some folk actually remove two springs on the dry clutch without slipping.
I'm not convinced that most slippage issues on the wets aren't oil related.
Quote from: ducpainter on September 24, 2012, 02:26:41 PM
I'm not convinced that most slippage issues on the wets aren't oil related.
Agreed.
Quote from: ducpainter on September 24, 2012, 02:26:41 PM
I'm not convinced that most slippage issues on the wets aren't oil related.
Really? I thought most were aftermarket-lever-adjustment related? [laugh]
BK
Quote from: BK_856er on September 24, 2012, 04:46:35 PM
Really? I thought most were aftermarket-lever-adjustment related? [laugh]
BK
That too. :P
I found the TPO military grade stainless springs quite heavy, the rusty oem springs (carb 900) quite light, and those older smaller diameter wind Barnett cro moly type springs somewhere in between. I note that the later powder coated Barnett springs to be a larger diameter wind and also not as heavy as the TPO. I havent tried the Speedymoto stainless springs, what are they like?
Do Barnett still make heavier springs for high hp and drag racing applications? I think they offered various rate springs on request.