so i have a 2020 cb650R (american market) have a full black widow 200mm exhaust a DNA air filter and blocked off pair valves. while getting the bike tuned at about 10.5rpm we noticed the hp and trq started to cut out like igniton and or fuel was breaking up. it did this as well on the same bike bone stock just to get an idea of hp. stock the bike put down 80hp and 43trq after a few pulls on the dyno and some tuning done trhough the ecu using woolich racing file for the cb650R we were able to get 88hp and 47trq but was still breaking up and making a consistent poppong noise through the exhaust. does anyone have any ideas on what this could be or what would cause it?
bike has 2800 miles on it we ran it with traction control ON and OFF and neither changed it.
bike has 2800 miles on it we ran it with traction control ON and OFF and neither changed it.