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A friend, who is a NOC member, but does not have access to the internet needs some advice:
He is restoring a 1955 Dommi 88 that was fitted at the factory with a race kit. It needs a tach drive and he is wondering what was originally fitted to such bikes - as much detail as possible, as he wants to get it right!
Thanks in advance.
hello Howard - Does it have…
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hello Howard - Does it have the right-angled tacho drive gearbox at the timing cover in-line with the camshaft ? A 55 Dommie would have had a dynamo at the front of the engine driven by the camshaft. When the race-kit was added they may have removed the dynamo and used a modified timing cover. This could have used a gearbox to drive an ATRC 2652 racing Smiths tacho or an RC 1303/00 Smiths chronometric tacho. Because the camshaft runs in the opposite direction to the crankshaft the tacho gearbox needs to be a reversing type. Both of these instruments could be mounted to the top fork nut on a plate with rubber mounts. An image or two will help it your friend has any. cheers, howard