SOHC.co.uk Forums > CB500/550

low compression woes

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Bryanj:
180 out dont matter as both outers come up together, more likely your mechanicaly trained spider forgot to hold the cam followers up when fitting the cam cover

matthewmosse:
ouch, surely a good used head is looking tempting at that stage? what's the real world oppinion on installing replacement valves by the way, get the stems replaced and reamed as per factory manual or drop in a new set of valves and 'feel' for clearence or even re use some old valves that are streight? reason I ask is I have a really nice cylinder head with 8 valves bent, that would be expensive by the factory manual way but if needed I have lots of spare valves with no visable dammage to them.

Bryanj:
If the valve guides aint cracked just replace with used valves and new stem seals, remembering the warnings when re-fitting the valve cover!!

captaindonutbikes:
no damage to the seats or valves guides. got away likely me thinks.

parts are being sent today, progress will be friday night/saturday

UK Pete:
Wow seems like you were lucky not to mess up anything else, good luck with the new valves
Pete

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