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Bsa B40 Exhaust/engine Oil

seth29
in Pre-65 Bikes

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Hi

Have started the rebuild of a 1964 BSA B40 and have 2 questions

1st the bike has a high level front pipe from s/miller but needs a new rear part of the exhaust, has anyone had the silverback exhaust of e bay http://www.ebay.co.u...=item27cdc599c6

or do you have any other surggestions.

Having spent a small fortune on the engine up to now and still not running would like some help with engine oil, what is the best full sinthetic you can use in the old thumper, eg 20/50 full or part sinthetic.

thanks simon

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