[Dave1954]

Hi thanks for reply,I think I've Susst it out the choke onthe right hand side,with a threaded connection, shows in the Sierra manual that it goes to alternator connection which is the brass threaded post, which chucks out about 7 volts,correct me if I'm wrong.id also like to ask do you know how to set up this carb. The guy I bought it off said he fiddled with every screw.Ive checked timing plugs, new leads, good spark ,good petrol flow. I've tried to upload a photo don't know if it worked. I must admit I've tuned my simple 2 stroke motorbike carb easily but I don't know what to do with this. Cheers. Dave