Hi Joe, It was the carburetor adjustment. Without the correct spacers the throttle cable wasn't able to push things properly as the bolt held everything too tightly. I replaced my bodgy spacers with a piece of copper pipe and the result was better. The choke closes now for starting but it's still all very stiff. I think the throttle cable will bend if I leave it like that. I'll have to keep an eye out for the proper spacers, washers etc but I haven't seen many suzukis up here in Mackay. This one was brought here by a new resident to the town.
