hi, i seem to be having an issue on start up. i have a 750-4 with keihin carbs and the stage 3 dnyo jet kit installed. its all set up to the recommended setting with a pods and a 4 to 1 exhaust. i seems to be back firing though my carb on cylinder #4 .it has a hard time starting as well. i believe the fuel screws are 4 turns out as per the instructions on the jet kit. any suggestions? thanks guys
1981 KZ750e
