The reason for the kick *** deal on this 2002 F4i becomes somewhat apparent.

The wiring harnesses were all jacked... Integrated tail light, no big deal right? Wrong..

What a hack job this is. I don't know where to begin.. well I do, sort of.

Let's begin with the front rather than the back.

I pull the side fairings off, dash panels off and then the upper cowl.. and what's the first thing I see you might ask? Well, I'm glad you did. I see the likely reason why the high beam wasn't going on, right, well, no.. I see two wires going directly to the lo beam, which seem run the length of the bike (upon further investigation). Yep, all the way back, under the tank, under the seat/tail fairing, yeah, all the way to the integrated light hack job. Woah, awesome, the crap hack job got even crappier... cool. I was like, "Self" then "Yo, whats good self?", followed by, "Self we gots us a **** job ahead of us..."

But the action doesn't stop there folks. I noticed a wire splice near one of the harness connectors. I think "Damnit, what the hell did the previous owner have HERE..". I look it up on the diagram, it's the bank angle sensor wires.. cool.. by why are they jumped/tied together using this splice? I take it out of line (the upper cowl with the bank angle sensor was still off/disconnected mind you), then try to start.. woopsie, the pump isn't priming. Reconnect the upper cowl harness, go to start again, it primes, figured eh, no need to start. Figured I would test the bank angle sensor.. 45 degree to left, still primes, to the right, still primes.. 90 degree to left, doesn't prime, to the right, no prime.. ok, seems like it's working.. which left me to wonder "why would someone want to bypass this?" I figured maybe he REALLLLY leaned into turns, but even then, the sensor didn't see THAT finicky. Is bypassing this a "thing" in the track circuit realm? I don't know, never been there sorry.

Anyway back to the dreaded headlight(s). Continuity exists and voltage before the relay exists and of course the fuse is good (hence the voltage), so I believe it's the relay, albeit, that isn't explaining why the lo beam isnt turning on upon switching the ignition to on. It does explain the ghetto assed wiring hack he did though, so that's a plus right!? At any rate.. just wanted to share the fun I'm having.. hopefully I put it in a somewhat humorous manner so you all know I'm not bleeding from the front.. I just have to laugh at it all really. I'm absolutely stupified when looking at his "work" and I do believe my IQ went down 20 points simply by looking at it all.. but that's ok, I'm still 5 away from dictating whether or not I walk and am able to speak, so I'm good! Enjoy.

Edit: Fixed quotes.

 

The reason the BAS was bypassed was most likely for stunting purposes.

Look it over carefully. I'd bet you find other signs of it's history. That sort of explains the hacked up wiring found too.

 

It was definitely down on its left side in ground/grass/field. I found a birds nest behind the engine on the left side. Though I figured that by the clutch lever anyway.

So far, nothing too serious, but the wiring job is definitely a joke. Then again I'm the soldering iron + heatshrink tube type of guy. The stunting makes sense, I hadn't thought about that. Running through this lo beam issue in my head, there must be a short in the harness somewhere I guess. I got sick of dodging hornets, wasps and two (maybe the same) huge yellow jackets. The bumble bee, well, just unsettling a little, big and fuzzy and all.. I'll head back out in a few with a refreshed mind about things.

 

Ignition switch, didn't think of that.. checking that now.

 

No, that cant be it, it starts. Instead, I believe I have it isolated to the starter button itself. When not depressed/starting it sends positive to the lo beam (constant) and to the hi beam switch (which if enabled/hi beam, then this powers the coil in the hi beam relay which then of course engages the contacts in there to complete the hi beam light circuit). I guess the contacts in the starter button are bad.

Time to take the throttle/ignition kill/starter button assembly apart. But, having never had to fuss with throttle cable (on this end anyway, not the TB end), not sure what to expect. Time to peek at the service manual.

 

It sounds like an interesting adventure you have there. Good luck.