SOHC.co.uk Forums > CB350/400
Winter Work
hondatri:
Deglazed barrels using borrowed Rotary deglazing tool. Lapped in valves found a broken outer spring on No.1 Exhaust also when I pulled off the Barrels top ring on No 4 Broken( May be my Fault) Bike had been running very rich as all pistons were black carbon I still need to know for sure if pistons are standard as there are no marking on crown. I still dont know if I should split engine to change Cam Chain horse shoe I can rock it with 2 screwdrivers 1 on adjuster and 1 pushing down on horseshoe at rear of engine it moves but not very freely as some resistance felt.
Bryanj:
Pistons were not always sized, look at the ends of the rings closest to the gap for any markings
Lynx:
Can you get hold of a Vernier Caliper to measure one?
Bitsa (Ralph Wright - RIP):
Go with Bryan here,If they are standard normally a N mark if oversize marked 0.25 etc to 1.00.You may need to use a magnifing glass depending on how good your eyes are.
Cheers
Bitsa
hondatri:
I have a jewelers eye glass I looked at a couple of rings no marks Whatsoever the piston dia is 50.80 MM. hope this info can help.
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