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Mohawk · September 28th, 2020, 02:30 PM

Thanks Danny, the 600/250 pic is one of mine. I found that post from Bruce, but the pic had timed out. So the new gen liner is as I recalled with the O-ring in the cylinder, what I really want to know is what is the OD inside that O-ring groove ?

The block pic is a pre-gen one as no cam chain tensioner boss. The pre-gen did not bother with an upper O-ring, because the head gasket forms that seal. Not sure why they added the upper one to new-gen. Either way I have a spare set of 600 liners that can be fitted & bored to 66 or 67mm for a 335 or 345cc big bore.

Thanks

September 28th, 2020, 02:30 PM	#5
Mohawk ninjette.org guru Name: Chris Location: Bristol, UK Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 478	Thanks Danny, the 600/250 pic is one of mine. I found that post from Bruce, but the pic had timed out. So the new gen liner is as I recalled with the O-ring in the cylinder, what I really want to know is what is the OD inside that O-ring groove ? The block pic is a pre-gen one as no cam chain tensioner boss. The pre-gen did not bother with an upper O-ring, because the head gasket forms that seal. Not sure why they added the upper one to new-gen. Either way I have a spare set of 600 liners that can be fitted & bored to 66 or 67mm for a 335 or 345cc big bore. Thanks