Shot carb, options please.

[Dean]

Any chance of a rundown on the Mikuni specs, size, type, jetting etc?

Hi Jools
just had a look on the bike. Not sure if the type but the numbering reads 301 83. Mind you its tiny so don't trust me!

Pretty sure its a 30mm bore (I haven't got a record but I could take it off to measure if you are really stuck) It originally came with a 175 mian jet which I increased to 185 in light of dyno tests (I run without an airfilter, as does the bike!). Pilot is 25 (aren't they all?!)

Allens website (http://www.allensperformance.co.uk/carb-kit/carb-kit-listings/) give the spec as

VM28-0284-K    VM28    28    BSA    BSA A10 Super Rocket 1958/1959 Replaces 376, 1 1/6″

or

VM30-0041-K    VM30    30    BSA    BSA A10/A65 Super Rocket/Road Rocket Twin VM30

[Joolstacho]

Thanks Dean, that's helpful. Interesting to see that the 28mm is a realistic option.
(I can imagine the 175 MJ would be rather weak though!)
Goodonya.
Jools

[Dean]

I ended up having to take the carb off today to make up a spare throttle cable so can confirm the bore is 30mm.