Hi, just got a 07 vfr my first fuel injected bike, rode for the first time today with temps finally near 50, compared to my 86 vfr and all other bike that I have owned when you back off the throttle of the 07 vfr it dramatically slows down like there is a brake drag but when you pull clutch in bike coast fine, is this just compression and how these v techs are ? also installed leo vince carbon evo 11 last night seems to run fine, is it ok to just let things how they are are do I need a power command and 02 sensor ?
You're probably just feeling the compression braking. As for the new leo vince cans, you should be fine so long as the headers haven't been altered and the catalytic converter is still in place.
