SOHC.co.uk Forums > CB500/550

Ignition problem

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Maax1200:
Hi.

First time forum post here and i am looking for some help.

I am about to finish a restoration of a 500 four -74 and have run into some problems.

I have installed a new main wire harness and was wondering what the cable in the photo is? Doesnt seem to have anything to do with egnition coils.

This wire wasnt connected to anything on the old wire harness when i bought the bike so i have no clue what it is.




Second problem i have is that the bike started for the first time just a few days ago and all looked and sounded fine. After that i was diving in to my third problem witch is tha the turn signals refuse to work, no static light no blinking, nothing. After i failed to fix that issue the bike would not start, no spark. Seems like iv checked just about everything and im running out of ideas. Previous owner installesd elecronic egnition but like i said, the bike worked just fine the other day.

Is it possible to mess up the egnition coils when fiddling about with the turn signal loom and relay? No fuse has blown or anything.


Thank you for any input.

/Magnus



https://photos.app.goo.gl/PCZ9QbDvCWdm4k6Y7

Bryanj:
Cant see any pic, put as attachment not link, sounds like you may have accidentaly disconnected a wire or turned the kill switch off

McCabe-Thiele (Ted):
Have you checked the power connection to the electronic ignition mine is powered from the stop lamp I think.

A new loom will not have that connection it's one you make when converting to electronic ignition.

Have you knocked the engine stop switch?

Maax1200:
Will check if any wires have come loose.

The electronic ignition is wired so that the kill switch still works. Well, at least it did the other day. Have tried to bypass the kill switch by connecting it straight to a ignition on wire (like the mentioned stop lamp)

 
No luck so far.

McCabe-Thiele (Ted):
Where the black (female) cable is hanging free in your photo to the left it looks as though there is a black cable with a white trace connected to plain black with a free male black cable with a white trace hanging spare if you get my drift?

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