Wiring harness connection to battery tray (with pics)

[Mike_Berkshire]

Thanks. So far the best price I can find is £70.00 plus postage. I will keep looking.

[SteveD CB500K0]

I have a copy but is hidden in the loft under two weddings worth of stuff.

Happy to dig it out and copy a few pages. Unless anyone else on here has easier-to-access copy?

Mark has these books published in (very) small batches. Hence the price.
Have you asked him?

Steve


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[Mike_Berkshire]

Thanks Steve - I just realised I have confused things. I have a '76 550 K2, not a 750. Although maybe I still need to do something similar?

Apologies for the confusion Alan.

M

[BigAl (Alan)]

No problem, the CB750 (K3,K4,K5) & CB550 (K0,K1) share the same 5-wire safety switch...the CB550 (K2,K3) have the 2-wire safety switch

[Bryanj]

Mark has been in the process of doing a 500/550 book for a few years now, hopefully available in the near future

[Mike_Berkshire]

No problem, the CB750 (K3,K4,K5) & CB550 (K0,K1) share the same 5-wire safety switch...the CB550 (K2,K3) have the 2-wire safety switch

Thanks Alan, is the safety switch the red rotary switch on the right handlebar?

[McCabe-Thiele (Ted)]

Kojaycat do the block connectors.

Brilliant, I'm assuming it's the 3.9mm Japanese bullets?

https://kojaycat.co.uk/epages/950000457.sf/en_GB/?ObjectPath=/Shops/950000457/Categories/Connectors_Bullet/39mm_Japanese_Bullet_Connectors

My 400 has 3.5 mm Japanese Bullets I think my 500 is the same - I have no idea about the 750 ones.

[Bryanj]

No the red switch cuts power to the coils, the safety circuit stops the starter working

[andy120t]

Just for clarity,......stops the starter working....when side stand is down or bike is in gear ( I assume it's the same on this bike as on mine).

[BigAl (Alan)]

I don't think the the CB750 (K3,K4,K5) & CB550 (K0.K1) had a side stand switch? They do both have the 6-way red connector fitted within the harness for the 5 -wire safety switch...just for reference the plug-in safety switch part No. is 31800-341-701...possibly not available, but it can be by-passed.

[Mike_Berkshire]

No side stand switch on mine and no red connector block either - all connector blocks are white. I guess the PO replaced the red connector block with a stock white one for some reason. There is a 5 way connector with wires going to the heat sink thing that is mounted above the starter solenoid.

[Yuppie_88 (Luke)]

Yep, on mine (750 K4) there is no side stand switch either.

The safety unit is unfortunately discontinued - I spoke to David Silver today to confirm. This means I'll be jumping the safety unit connection as BigAl mentioned.

I've found a nice electrical box online which has 60mm centre mounts, this should bolt on directly to the original safety unit mount (could be a nice place to keep some spare fuses too). I intend to run the jumper connection through the box to keep things tidy and add a nice new connector block on the end of it. I know I'm the only one who will probably see this but, I don't like the idea of this thing flapping around  

[McCabe-Thiele (Ted)]

This thread ought to be on the 500/550 section.

My 500 K1 has no red block connectors, no stand or clutch switch.

[Mike_Berkshire]

Good point Ted. See new post on 500/550:

[McCabe-Thiele (Ted)]

I thought the site moderator could just move the whole caboodle.