- Joined
- Feb 21, 2019
- Messages
- 1,067
thanks for the heads up on the norton jetting - i'll make note....I can't comment on your BSA but #17 can be too weak for a Commando as Burlen/Amal has been fitting #19s to Commando 850 carbs for a while now.
"We are now fitting size 19 Premier pilot jets as standard to 850cc Norton Commando carburettors as this has been found to perform better than the size 17 fitted to earlier versions of the carburettor."
They should have the normal (0.016") pilot bushes.