79 head cluster
Posted: Tue Aug 05, 2025 3:12 pm
I've been doing some more nighttime riding this year and really need to fix an issue with the cluster that's always been there.
Basically, none of the backlighting for the speedo and tach works. I've replaced the bulbs and when I had the speedo rebuilt a while back I made sure all the old connectors were put back together, but still no dice. The other thing I've noticed is when I flip the high beams on, the right side of of the oil light comes on.
Apart from that, everything works fine. Neutral indicator lights up when it's in neutral, the headlight, taillight, brake light and turn signals, including the cluster indicators, and buzzer work fine. So do the backlights for the temp, fuel and voltmeter. I opened up the fuse box in the false fuel tank and oddly the 10A fuse and related socket were totally removed at some point.
I know I probably just need to tear into it with a meter but wanted to see if anyone had any ideas that might save me some time.
Basically, none of the backlighting for the speedo and tach works. I've replaced the bulbs and when I had the speedo rebuilt a while back I made sure all the old connectors were put back together, but still no dice. The other thing I've noticed is when I flip the high beams on, the right side of of the oil light comes on.
Apart from that, everything works fine. Neutral indicator lights up when it's in neutral, the headlight, taillight, brake light and turn signals, including the cluster indicators, and buzzer work fine. So do the backlights for the temp, fuel and voltmeter. I opened up the fuse box in the false fuel tank and oddly the 10A fuse and related socket were totally removed at some point.
I know I probably just need to tear into it with a meter but wanted to see if anyone had any ideas that might save me some time.