With the ignition switch ON, do the lights come on? What type of battery is it & did you properly service it or check it before installation? Never assume a battery is good >> test it. even if new.
Check the fuses >> there's a main fuse box w 30A fuse & a number of 10A fuses, and there's also a 30A fuse at the starter solenoid. The junction box is probably labeled to identify the fuses.
Simple load test (engine off). Charge the battery with a good motorcycle smart charger. It should be at least 12.6 VDC, but a good battery will be higher. With ignition switch on (engine off) & headlight high beam on, the voltage should drop to about 12.2 VDC. If it drops below 12 VDC, the battery may need replacing. If it drops below 11 VDC, the battery is probably shot. These are the numbers I use. there may be a chart on the internet.
I use a Ctek US 0.8 smart charger & VC97 digital multimeter.
1981 KZ650-CSR. Competition, Sports & Road.
Last edited by martin-csr; 04-25-2019 at 09:15 AM.