Saturday 4 May 2013

New clutch plates in Mark's bike

As usual, click any image to zoom in.


Mark's clutch lever has been always been a bit heavy and noisy even after oiling it so he went to BSA Lightning Spares and splashed out this morning on four Surflex clutch plates, four new springs and four new clutch cups.

The photo on the right shows the old plates which didn't look too bad. The new Surflex ones are brown rather than black.

The cups that were already in were about 4mm too short - looked like they were out of a Bantam, maybe. All very reminiscent of the problem I had on my C15, documented here.

The slots in the blurred photo on the left looked like a set of gums with no teeth in from where the tangs on the plates had worn them away so we filed those smooth to allow the plates to separate freely and reduce drag.


It's all back together and not only is the clutch lever significantly lighter but the gearbox no longer clunks when changing down into either first or second gear.

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