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General Category => General Discussion => Topic started by: Swat on March 02, 2026, 01:51:36 PM

Title: V65 Exhaust Valve Spring change
Post by: Swat on March 02, 2026, 01:51:36 PM

Greetings All knowing Members  :bow:
I'm in the process.of changing the exhaust valve springs on a 1984 V65C Moto Guzzzi.
I ordered the Breva Springs suggested, when I started to assemble (yes, I ordered the proper valve/ lapped it, cap& keepers)
The new spring does not fit over the boss on the old bottom cap, it almost fits, there's a keeper above the cap on the valve guide, what is the process of changing the bottom cap or what do you suggest for going forward.?
Thanks in Advance
Swat
 :bow:

Title: Re: V65 Exhaust Valve Spring change
Post by: Antietam Classic Cycle on March 02, 2026, 03:35:42 PM

Either modify the bottom spring seats to fit or buy the Breva 750 spring seats. The "keeper" is likely the valve guide seal and should be replaced.

https://harpermoto.com/products/lower-cup-31037015
https://harpermoto.com/products/valve-seal-19037820

Title: Re: V65 Exhaust Valve Spring change
Post by: Swat on March 02, 2026, 05:01:23 PM

Quote from: Antietam Classic Cycle on March 02, 2026, 03:35:42 PM

Either modify the bottom spring seats to fit or buy the Breva 750 spring seats. The "keeper" is likely the valve guide seal and should be replaced.

https://harpermoto.com/products/lower-cup-31037015
https://harpermoto.com/products/valve-seal-19037820

Got it covered thanks :thumb:

Title: Re: V65 Exhaust Valve Spring change
Post by: Swat on March 02, 2026, 05:03:29 PM

Thanks to all  :bow:
All is taken care of  :boozing: