Hi all

Thanks again - started stripping last night and I got the trigger block off now and the spring out - the piston/rod seems a bit stuck though at the moment.
Is there a spec on the spring for its 'relaxed' length in case it's usable in the short term. This will definitely be the original from 40 years ago.
but it's done no work in the past 25 years - what's known on motorbike circles as a 'barn find'..