Bigibee
SlowerThanYou
Just inherited a beautiful, virgin '78 Special II. I ride vintage dirt bikes, so I am somewhat familiar with carbs, especially Mikunis. The bike is great, but it backfires coming down from speed. I cannot find the mixture screws - anywhere. I've searched The Garage high and low, and no one seems to have this problem. I've found what I think are "vacuum port" screws below the throttle rod, but these don't turn out much - one is outside the left carb and the other is inside the right one. These can't be mixture screws because they were securely flush when I tried to turn them. There are a couple of vertical "ports" in the front of the carb with metal plugs - which don't come out, at least not easily. WTF????
I can't believe Yamaha/Mikuni would market a bike without mixture screws, but there you are. The model number of my carbs are 3GI 00 B136 MIC KOGYO. They have chrome CV dashpots.
I may not be the brightest bulb in the bathroom, but I know what a mixture screw looks like. There ain't none on this bike...HELP would be appreciated - thanks!!
I can't believe Yamaha/Mikuni would market a bike without mixture screws, but there you are. The model number of my carbs are 3GI 00 B136 MIC KOGYO. They have chrome CV dashpots.
I may not be the brightest bulb in the bathroom, but I know what a mixture screw looks like. There ain't none on this bike...HELP would be appreciated - thanks!!