Electrical issues - cbx 750F


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Alemaog4T
New Member & Happy To Be Here
New Member & Happy To Be Here
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Location: Basel

Electrical issues - cbx 750F

Post by Alemaog4T »

Hi everyone!

first post, already asking for your wisdom :D
My CBX 750 F has arrived home non-running (e.g. on a trailer). With the battery charged, I turned the ignition key and notice two unsettling things:
i. the dash light "tail light" would light it up whenever the clutch is pulled in (e.g. the clutch switch is "closed").
ii. the run-stop switch does NOT kill the start button (e.g. engine cranks regardless if it is in "run" or "stop" position).

Assuming I have an electrical issue somewhere, I started focusing on diagnosing this. So far, I have tested the continuity of the fuse box, and both right and left controls, and everything checks out with the wiring diagram. During these tests, I found out an even funnier issue: with the key in "on", there is not a single light in the bike that works except the neutral and oil dash lights. Now, with the clutch pulled in (and the "tail light" on the dash on), the park, low and high beams work (including the dimmer), as well as the braking lights :sad-roulette: . The blinkers sort of work, with a behavior like there is a burned bulk (although all bulbs light up). I have removed the rear relay light box, and nothing changed except that the rear lights stopped working. I have cleaned all connectors, checked for visual damage on the wire harness - so far, nothing obvious explains this... I have studied the wire diagram for hours now, and cannot see an obvious place where wires could cause such behavior, although I know something is not right...

Note that this is my first "full rebuilt" project, and electrics is the place I have least experience/knowledge.

I am sort of lost on what to test next - has anyone had similar experiences, or would have any advice on what to do next?
Thank you all in advance for your help!

daves79x
ICOA Technical Director
ICOA Technical Director
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Joined: Sun Oct 01, 2006 8:05 am
Location: Knox, PA
Location: Knox, PA

Re: Electrical issues - cbx 750F

Post by daves79x »

I guess I'll do the honors - this is a forum dedicated exclusively to the CBX1000 six cylinder. We have many requests such as yours and have to respectfully tell you all that this is a CBX1000 forum. We certainly do appreciate that you took the time to look us up and post your question. To be sure, your question is somewhat generic in nature related to what indeed may be commonality between the models.

Perhaps someone will weigh in, but you may want to search other venues as well. Good luck!

Dave

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