SOHC.co.uk Forums > CB750

Engine Durability

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Bryanj:
Steff, you will probably find age knackers the rubber bits long before mileage does in the engine!!

matthewmosse:
My 500 saw 180,000 before starting to jump out of gear in 1st and 2nd - it did most of that with minimalmechanical input appart from oil and filter changes and a quick check of the clearences on the camchain and tappets which were invariably in speck. Points rarely needed any attention. I only got issues after changing the engine due to the jumping out of gear issue. That was all as a sidecar outfit and I used it hard, carrying sometimes complete bikes i kit form across the country in one trip. Looked after they are tough.

steff750:
yes I totally agree bryanj I have seen how hard those rubber bits get over the years and fall to bits , like cam chain tensioner  and wheels and I have seen oil pump strainers totally full of bits of rubber ,and that is the first thing I do with all engines is drop the sump pan :o Im still trying to find the magic formula to soften stuff like the carb rubbers

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