2004 gsxr 600 sound like misfire under 4k rpm. i need helpTake a video and load to youtube.
The image is not the best but i guess you can hear the misfire when i take off. It does clear after 4k rpm. I just remove the throttle body and replace the vacum lines and clear the whole body. issue remain if that video is not helpful on how bad it sound. I can re take another tomorrow