just wanting to know if anyone can post up pics on how they have tuned thier carbys at all. and a step by step way of how yous guys have done it... it is a stock a12 with electronic dizzy and oval port head it also has extractors. just wanting to know how many turns i have to do the air fuel mixture wheels and what the big screws do at all. when i do give it a bit of herb it either sounds like it is struggling to get the revs up or it back fires like crazy. the timing is set to 10 degrees.

try reading a bit about them first.
look around on the net there are some really good sites that deal with tuning su type carbys.
they explain what to do, what to listen for and how to do it.
all you should need is a phillips or flat screwy and a metre of garden hose.
try these sites for info


here

here

and here

thanks pepper. very handy. i am going to give it a try myself just to see what i can do and mike aka dundee1000 is going to come out and have a look see when he has time.. i am trying to do as much possible asd i can by myself and these web pages are very handy cheers.