Other Stuff > Misc / Open

Cruzinimage pistons and rings

<< < (6/7) > >>

Nurse Julie:

--- Quote from: Oddjob on November 09, 2023, 06:42:53 PM ---
--- Quote from: Nurse Julie on November 09, 2023, 03:37:54 PM ---Ah yes, I've recently read Mike Nixons Cycle Project myths and tips on the CB350. He was saying it was common knowledge the Cruzinimage big bore kits for the CB350/4 had soft piston rings, leading to probably wearing out the rings resulting in oil burning within a few hundred miles of fitting. So yes, that's a known problem. We never fit big bore kits to our own engines or any customers.

--- End quote ---

You would imagine though Julie that Cruzinimage sourced the rings from the same place they source their other rings from IF they don't make them themselves. The rings in question were labelled 3.00 so that makes them 50mm x 50mm, with the 400 being 51mm x 50mm, that makes you worry about the 400 rings.


--- End quote ---
I don't think the Cruzinimage 3.0 over big bore kits use the same piston rings as the 400/4 on their 0.25/.50/. 75 over. They have different marking on them and I've read the 350 big bore rings have a different profile or shape on the oil rings. But, as always, it's owners choice what they use.
But, stock of OEM 400/4 pistons / rings etc are very limited these days. Even Yamiya sell the Cruzinimage kits and they aren't know for selling dodgy products.

philward:
I've got big bore kits on my standard 750k2 and CR750 Rep. About 4000 miles on K2 and 300 miles on the CR - no issues at all

Sesman:
Offtopic, but I note Mike mentions not having to live with brake squeal, but I don’t see an article on how to cure it. Did I miss it?

Nurse Julie:

--- Quote from: Sesman on November 09, 2023, 11:07:49 PM ---Offtopic, but I note Mike mentions not having to live with brake squeal, but I don’t see an article on how to cure it. Did I miss it?

--- End quote ---

https://www.motorcycleproject.com/text/brake_ills.html

Sesman:
Thanks, Julie. I’ve just noticed the ‘more tech articles’. Need to go to spec savers (other opticians are available).🫣👍

Navigation

[0] Message Index

[#] Next page

[*] Previous page