gsxr1216
Registered
2002 busa i'm getting a idle misfire on cylinders 1 and 2. at idle they are running 220 degrees. cylinders 3 and 4 are running at 420 degrees. i replaced all 4 plugs and no difference.
i compression checked it and all 4 cylinders are within 5 psi. i removed injector harness one at a time and when 3 or 4 is removed the bike almost dies. i removed plug to coils one at a time and when 3 or 4 is removed bike almost dies.
i swapped coil sticks around and still no difference 1 and 2 stay cold and misfire. it seems when you bring the rpms up that they smooth out some? is there any specific sensor or something that would only affect 1 and 2??
any other ideas on what to look for ??
i compression checked it and all 4 cylinders are within 5 psi. i removed injector harness one at a time and when 3 or 4 is removed the bike almost dies. i removed plug to coils one at a time and when 3 or 4 is removed bike almost dies.
i swapped coil sticks around and still no difference 1 and 2 stay cold and misfire. it seems when you bring the rpms up that they smooth out some? is there any specific sensor or something that would only affect 1 and 2??
any other ideas on what to look for ??