I have a '11 r1200gs and recently purchased a gs911 and a harmonizer. My question is that it seems you pick an rpm range to zero ie my understanding is 3500 is recommended. My issue that unlike the utube video I saw my balance is not linear, another words I would think that once you had it "balanced" that it would remain the same or at least be linear as the rpm incresed. This does not seem to be the case.
can someone explain this. The bike is low mileage and runs well, at least untill I started this.