SOHC.co.uk Forums > CB350/400

Smokey rebuilt 350

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Nurse Julie:
All the piston rings we have had that come in the kits from Cruzinimage for the 400/500/550 and 750 are Riken which are a good make. Not had any CB350 sets from them for yonks, so can't comment on those ones.

royhall:
Thanks Julie. Yes, there are very few bad reports on the bigger bikes but loads about the 350. I'm suspecting the rings as I have a series of strange vertical marks on the bores. Possibly out of round rings that would also cause the smoke.

Nurse Julie:
All the Riken rings have a minute letter R stamped on the rings. Difficult to see sometimes but maybe worth looking to see if yours have the R mark Roy.

royhall:
Cheers will do.

royhall:
The rings are marked "T" and the oversize on all three rings, no signs of an "R".......... I have a set of Cruzinimage +1 pistons and the rings on that are marked the same. What make would they be.

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