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Montesa 349 Crank 1982

stichillist
in Twinshock

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I put my 349 away a year or so ago after hearing what I thought was rumbling main bearings. It joined the queue behind some others I was restoring. Having got down to it now I've found that the crank is showing evidence of a crack lengthways and inquiries reveal that this a weak spot on these motors. Evidently some shear off but this one hasn't yet. Can anyone comment on getting them repaired? SEP in Kegworth have said they will look at it.

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