Headlight Issue 2019 CB300R
Hi everyone, wanted to get some insight into this.
Few days ago I noticed my headlight (low-beam) brightness fluctuating above 5000rpm. Immediately thought of a voltage issue or stator malfunction, etc. However, I rode about 500km yesterday and the headlight is constantly flickering. High beam is fine, turn signals, instrument panel, brake light, etc are all good.
Only the low-beam seems to have an issue, and only when there is vibration through the chassis. This makes me think it is not an electrical system issue but a connection problem. It seems to be frequency related as going over rough pavement does not affect it.
Sometimes the low-beam turns off completely but if you give the headlight assembly a nice tap with your hand it comes back on. Also if you rev above 5000rpm when stationary it flickers.
Here’s the complication: I checked the manual for the lightbulb section and Honda says something to the tune of “your motorcycle is equipped with all LED bulbs and if any are off, see your dealer.” The manual has oil change instructions but no bulb change? Surprise to me.
I’ve been working in car dealership service dept. for a decade, I can do basic mechanics myself. So I opened the headlight assembly and found that unlike in a car where the connector from the wire harness goes to whatever bulb, the connector in our assembly goes to another connector inside the headlight. Took some pictures and attached.
There also looks to be some sort of PCB inside the headlight assembly but I did not risk completely disassembling it yet.
Appreciate any thoughts as to how to check the issue without the local Honda dealer bending me over? I’ve wiggle tested the wires while the light was on, reconnected the connectors, shook it around to no avail.
Also anyone else have experience with this bike’s front lamp? Is it designed to be disassembled?
Thanks in advance!
Last edited by Bassface; 09-08-2019 at 02:47 PM.