So I had the surging feeling. I replaced my chain and brake pads. Still get it. So I changed the squirrel condoms and I think it was a little better. So I am thinking carb issue. So I built a homemake manometer as you find on a quick internet search. As I hook it up my right side has a much stronger vacuum than my left. So I try messing with the screw in the middle of the carbs and am confused. If I turn it counterclockwise does it move to favor the left carb or vice versa? That thing is a real PITA to turn too. Any other great ideas? I don't get any tach jumps. it for the most part rides great except at 30-40 miles an hour I get that surging feeling. Kind of like a rubbing and some vibration in the front pegs. I tried running her on the highway today with some throttle changes to see if a needle or slide was sticking. I do a lot of highway miles. So rev up and hold it at the same throttle position for about 20 mins. For the most part. So my two questions:
1. How do I get these things into balance.
2. Any other ideas on carb issues that make them surge? I haven't done anything with them for about 3 years btw.
Thanks!


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