I have a 1980 CB900 custom bike. I am having problems with the being able to start my bike. I can turn on the ignition key and get lights but when I push the starter button nothing happens, just the headlight will dim when I push it. I have replaced the starter solenoid but didn't seem to fix the problem. I can bypass the starter solenoid with a screwdriver and the motorcycle will start. Does anyone know what I need to look for next?