I started another thread under similar questions, fuel mileage is good on the 650 ABS 2015, however the response below 4500 RPM , in my case 4000 RPM, is not of use , my 07 I had no trouble running down to 2500 RPM in 4th gear, can't do it on the 2015. If there is a fuel mileage gain that would be icing on the cake. Many have gone with the booster plug, we all know what that does, very similar with tweeking the TPS sensor on the Mk-1 & MK-2.Would you be interested in a wider powerband and more power for your v650? What if it came with increased fuel economy? Would you actually be willing to spend some of your hard earned money for that?
Thread combined as of Aug.3