f4i, dualheadlight mod, headlights dead
this is obviously an issue difficult to troubleshoot without being able to see/work on it directly.
I have an '02 f4i. I got it last year it came with a dual headlight mod. at the end of the season, the headlights suddenly died. what i mean by that is, when i turn key to on, no headlights come on and toggling between regular and high beam doesn't do anything. I decided to leave the problem till this season.
This season, I just took the bike in for service and asked them if they minded taking a look. They were kind enough to superficially probe some of the wires with a multi meter. The tech said that there was no current getting to the lights.
I thought it may have been a lose wire so i removed the front cowl to poke around and look. No visible physical signs of problems. I checked the fuses and they looked fine too. I even swapped the 10amp fuse with another one just to be sure.
If i take the bike in to a service center without knowing what the cause is I can already guess i'm gonna spend a lot of $$$ for the tech to even just troubleshoot it, let alone fix it.
Does anyone have any suggestions or ideas on what i can do to narrow down the problem, or even (hopefully) resolve it?
thanks in advance
I suggest a manual (because they have wiring diagrams).
Having said that, I would guess you are either looking at a broken wire, or, and this is more likely IMHO at a sticky relay. You can get the relay out and apply power to it and see if the switch closes (by listening).
EDIT: I think you can reach in and touch the relay even without taking any of the fairing off, or perhaps just one piece, its been a little while.
EDIT: Oops, I just read that its modded a little. Since I dont know what that consists of, its more likely something has gone wrong with that wiring/connections. People make the mistake of routing wiring wrong, not making strong connections, not protecting it properly, and then over time the insulation frays/wires break/whatever.
Summary: check the relay first because its easy, then you'll have to look at the circuit and trace it back to power/look for breaks.
Last edited by bluenote; 04-20-2009 at 09:40 AM.
This is a dumb dumb noob question. when you say relay do you mean the plug thing that connects to the back of the headlight?
Originally Posted by bluenote
what would be the easiest way to apply power to it to test?
Relay for sure if its not the bulb or fuse. Google relay so you understand