hello, I have checked the plugs. they are fine. switched them and it still happens in the third carb. while the motor was running took a light tester and stuck it in the coil wire against the plug and the popping sound stops completely and the motor runs fine. Take it out and runs rough and pops...
when engine is at an idle the third carb is poppin. goes away when throttle rises and then starts again. Ran some engine tune through the carbs and it didnt change anything. Does anyone know what im talking about. Thanks