Primary drive damper rubbers

[PhilC]

Hi! I am searching for primary drive damper rubbers for the CB750K SOHC engine. Does anybody know where I can get these in the UK or Europe? (I know CycleX have them in the USA but trying to source them closer to home). Thanks in advance.

 

[pickleknuckles]

Have you tried CMS?
https://www.cmsnl.com/honda-cb750k_model50625/

 

[PhilC]

Yes, I've tried CMS, David Silver, etc. I have sourced them before from Germany but, unfortunately, they no longer have them.

 

[pickleknuckles]

Tried Andy Cepok at AC-Motorradteile on ebay? He's in Germany. I've bought a bunch of high quality stuff from him.
https://ebay.us/m/7uHGoj

 

[PhilC]

Thanks. He's not listing them but I have messaged him.

 

[PhilC]

For those interested: having dismantled the primary drive unit, I see these rubbers are 16mm diameter - a standard size o-ring material. This nitrile cord is Shore 70. Perhaps a little soft? I note CycleX over in the US claim their rubbers are Shore 85. Given a metre of this stuff is £15, I think it's worth a try. Any thoughts?

 

[pickleknuckles]

Relatively, 70A is pretty significantly softer than 85A. Can't answer on if it'll work. It might, but I'm not sure if risk it to save a couple bucks given the effort to replace them if they wear quickly or come apart.