There is only the black knob that controls the idle. There is an air fuel screw that controls the fuel mixture, tighen it up then loosen it say about 1 1/2 turns then try it there. If it does not suit your needs keep going with it more turns. My 500 ruby is stock which should be about 2- 2 1/2 turns.
Did they put the proper plug back in your machine?
Does your bike stall?
Did the idle knob not do anything? Is the cable pooched?
Is the choke setting functioning properly?
You should not have to do this yourself if you paid someone credible!
Did they put the proper plug back in your machine?
Does your bike stall?
Did the idle knob not do anything? Is the cable pooched?
Is the choke setting functioning properly?
You should not have to do this yourself if you paid someone credible!