10-12-22, 06:56 PM
I didn't think that the S2 version was launched until 2007. The S2 actually smoothed out the throttle roll on from shut somewhat, although still not perfect. Some riders have fitted a 4 degree ignition advancer and claim that to smooth it out. Some also alter the the fuel mixture in the bike diagnostics system. I fitted a Power Commander 5 and had it set up on a dynamometer. May also possibly be a faulty/incorrectly set throttle position sensor and/or incorrectly adjusted cables. Bes to start with the easiest and cheapest potential solutions. Oh, and Id suggest not using E10 fuel, but that's a personal thing.