I have a NC23 that needs its carbs balanced.
I have a haynes manuel and i am thinking about doing it myself.

Anyone know of a decent balancer for a good price or know of a decent garage in herts.

get a set of morgan carb tune

http://www.carbtune.co.uk/

I used a set to balance my carbs

Hello thanks for getting back to me.

Do you know what size adapter the nc23s need. Was it easy to do...looks stright forward on the hanyes Manuel

I have those too. The adapters that come with them fit so no need for anything in addition.