Electrical

Hi,

I need to re-wire my 1952 Inter but can't find a wiring diagram for it anywhere (not that there's any complication to the circuitry)..  My first question is to ask  if it would have originally been -ve or + ve earth?  And the second is whether they were wired with black-insulated wire throughout or had Norton moved over to colour-coded wires by that time in common with some other manufacturers?

Many thanks in advance.

Nigel

Hi members, I have a 69 650 ss mercury.  I have a Boyer Bransden micro mk 3, will this be compatible, or would a Trispark be more suited, any information would  be appreciated. 

Sorry this is not specifically Norton but relates to the Triumph-Greeves which I am close to finishing. It has 12 volt positive earth electrics controlled by a Zener diode and solid state rectifier. I've fitted indicators but am not sure whether 2 pin flasher units - like this one https://www.racing-planet.co.uk/flasher-relay-digital-standard-without-beeper-p-137957-1.html - will work on positive earth. There are 2 terminals marked B and L.

I have a four post ignition switch and have power to the brown/blue on post 1.

I would like to know what posts should be powered in the four key positions.

1. Parking - 1 and ?

2. Off - 1 only

3. Ign only - 1 and ?

4. Ign & Lights - 1 and ?

I think the switch is bad and I'm trying to confirm it.

Please help.

 My apologies to the person who responded to this enquiry as I mistakenly deleted the information that was posted, so would the member that replied please re send that info'

David

Hi, would I be correct in assuming that the correct Lucas rear brake switch fitted to 1962 model 50 is part # 31437, regards    David

Does anybody have a recomendation for a better ignition switch than the one usually fitted to  a 2A Commando? In over 40 years of ownership I have probably replaced this switch four or five times, and now I think it's on the blink again. 

On the wiring harness p/n 06.6396 there are 4 red wires (see picture) and one seems to go nowhere. I cannot find the other end and need help to know what it is for?

Of the 4 wires 2 are positive ground. The third goes to the Accessory Plug & Socket (06.2666), which therefore needs to connect to one of the 2 ground wires. The other red ground wire goes to the horn.

A friend of mine has a pair of Commando 850 MkIII’s, both fitted with LED lights throughout, including side lights and instrument lights.

He was in the garage one day when he turned the ignition to ON and then pressed the brakes, he was surprised when he saw the front light go on, remember this is a LED sidelight so is very bright and is even ok to use as daytime riding lights.

I’m looking for a Timing Light for my Commando with electronic ignition and positive earth but can’t seem to find one, any ideas were I can buy one