Jump to content
Sign in to follow this  

What's up with my front light ?

Recommended Posts

Ok so recently put a normal front headlight back and noticed how dim it was and always were. I measured the voltage at the headlight and it was below 12V. The battery was in good condition, I got this reading with both batteries I've had on my bike. Question is why do I get such a big voltage drop to the headlight ? Surely Suzuki used thick enough gauge wiring ? If I run thicker wires directly from the battery the voltage picks up. This is with a 55W bulb. The charging voltage at the battery also measured correctly :thumbsup: It's nothing serious just that a dim headlight is a bit annoying.

Share this post


Link to post
Share on other sites

try running your thicker wires one at a time to isolate whether it's the ground or the power that is low. Is this on both high and low beams? My guess (just a guess but most common cause) is that your ground wire is not making a good contact.

Share this post


Link to post
Share on other sites

You can use a digital volt meter to meaure votage drops to isolate the source. If the voltage drop is reduced by running a heavy pos wire, the drop is someplace in the wiring you bypassed. Maybe in the ignition switch. No, Suzuki (and most motorcycles) do not use big enough wires.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×