Heya Guys Im on a 09 VFR and have messed her right up. She is guttless from idle to about 3000rpm, feels like its starving or its missing?? any way its very eneven and sluggish till you hit 3000rpm and then she wakes up and is off. I have done all basic mods, flapper, snorkel and pair ect. Also put delkevic catless headers and pipes on, factory ECUnleased flash which changes fuel and ignition maps, and lastly dyno tuned the PCV to make all small adjustments needed to smooth her out. The bike is insane, the torque curve is great on paper and better in real life, it honestly feels more powerful than the 02 blade i had. But i have lost everything from idle to 3000rpm. Any ideas on where to look or what to do for this to be correted. My friend with the dyno says its very hard to tune a bike in low rpms on dyno, but have played around with fuelling on the power commander to lean it out and richen the mix with zero effect on problem. Thinking SV balance, injector clean, back pressure issue. Please help and thanks guys
Balance the starter valves would be my first job. Its fairly easy and is essential for idle and low rpm running.
