cb500 dead short

[RGP750]

Up date.
Well I took everything off I could find including the battery.
Did the continuity green?black test on the loom and couldn't find anything. Put loom back on and
fuse NOT BLOWING ,put together rear light wiring , tested , Ok switches OK horn ok everything else all ok .
A eureka moment fuse still ok . Now here is the next problem , what the hell is wrong now. Nothing works
no horn, starter, dash lights rear light Nothing. What the hell have I missed.  HELLLLP!!!!!
Done Battery test and 12v

[SteveW]

Are your fuses okay? I had a problem on my 550 where everything died, turned out the fuse looked intact but had just degraded with age and was open circuit.

[RGP750]

Hi Steve
Please see the start of the thread cheers

[K2-K6]

Can you measure volts coming out of the fuse now, en route into the loom ?

[RGP750]

what meter between fuse and red wire going to ignition switch?

[K2-K6]

Yes, to check if anything is now going into loom.

Positive lead to fuse exit, negative lead to battery -

[RGP750]

OK Back track.
Just found out why nothing working, knew it would be something stupid OOPs! multi plug on the loom not plugged in
But now I have plugged it in Fuse has blown so where to look now.

[K2-K6]

Looking more like it'll need unwrapping to understand it.

If there's nothing obvious, and it still blows the fuse when nothing is connected (any devices) to influence the outcome, then it must have some compromise inside.

[RGP750]

if it didn't blow before I connected the multiple in the side panel would that not mean the problem in in whatever the socket is connected to ?

[Bryanj]

That suggests the main loom is a problem as the fuse is not connected till that big block is connected due to being part of the sub loom.

[RGP750]

Thanks Brian just done this this morning.
Disconnect block, check black live into headlight for continuity and all is fine , plug block in and it shorts.
I then check black in sub loom and ok, check black on regulator ok. Something is happening when it is plugged in .?¿

[McCabe-Thiele (Ted)]

Have you tried it with just the rectifier plug disconnect & the flasher unit not connected?

[RGP750]

Don't want to rejoice just yet but it looks like the whole mess is down to a faulty Indicator relay.
I have ordered a new one and will report back.
Looks like Ted may get first prize.
Watch this space
Cheers all for your thoughts.

[McCabe-Thiele (Ted)]

The flasher unit on my old 400 was this inside after standing for over 10 years.



.flasher unit by Macabe Thiele, on Flickr

[RGP750]

think that's shot. mine was a repro only fitted 2 years ago.