Brake and or tail light issues???

To start off with, my battery is most likely dead, as it is at least 3 years old. Having said that, when my bike is running in “night mode”, it appears as if the “tail light” is lit, and I say tail light because it is not very bright. Now when I apply the rear brakes, and and foot, the light goes off. When I apply my front brake nothing changes. In addition, my horn is barely audible. Do I need to replace my battery to correct these issues, or is there more going on?

You described all the symptoms and will blow every bulb with a dead battery eventually. A new battery is in order. I would install a sealed lead acid battery, not a stock leaker.

Like this?
Powersonic PS-640F1 - 6 Volt/4.5 Amp Hour Sealed Lead Acid Battery with 0.187 Fast-on Connector https://www.amazon.com/dp/B0002ILK4K/ref=cm_sw_r_cp_tai_UAafEb6C0EG1G

Yes, a Powersonic PS-640F1 6v 4.5 ah will work. Cut the wires as close to the old battery as you can and install new insulated connectors.

thanks!

BloFish said:

To start off with, my battery is most likely dead, as it is at least 3 years old. Having said that, when my bike is running in “night mode”, it appears as if the “tail light” is lit, and I say tail light because it is not very bright. Now when I apply the rear brakes, and and foot, the light goes off. When I apply my front brake nothing changes. In addition, my horn is barely audible. Do I need to replace my battery to correct these issues, or is there more going on?

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Try checking the fuse I had a similar problem with the horn and rear brake light and it was the 10amp fuse. Good luck . Anthony.

If a new battery does not fix the problem check your grounds starting with the taillight its self

I’ll check the fuse and grounds in the morning, thanks

I agree with what OLD CT posted in #2 above...low voltage due to a weak/dying battery.

IMO, it's a lot easier to bench-test the lighting/electrical system, engine not running. A known, fully-charged, battery plus a couple of test leads can make this possible...if you lack a 6v transformer, such as a battery charger. Everything but the headlight & high-beam indicator light is fed battery power, easy to bench-test. A battery charger will provide voltage above 6v, closer to what the battery "sees" with the engine running, plus it won't discharge. You can connect charger leads to the battery terminals, battery connected to the harness, or in place of the battery. To test the HL circuit, unplug the stator from the wire harness, then feed (+) to the yellow harness lead, (-) to the frame, or engine. The HL will operate normally with AC or DC, whereas the battery must be fed DC, if it's not supplying DC power to the rest of the system.

I am happy to report the new seals battery fixed my issues!

BloFish said:

I am happy to report the new seals battery fixed my issues!

Click to expand...

Wonderful.