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Headlight Wiring for a 1972 H2 (or is there?)

Posted: Mon May 04, 2026 12:06 pm
by Mike Steer
I'm in the final stages of the project now. Decided to make my own loom. I've taken pictures of most things electrical as I stripped the bike but as per usual with me I didn't get enough detailed ones. In my defence some of the wiring had been ripped out/changed at some stage by a previous owner, including the addition of a cigarette lighter!!! Could you tell me if there is any wiring connected and 'stored' inside the headlight bowl. I'm looking at the handlebar switches, speedo and rev counter cables at the very least. Bikes I have restored in the past did have such an arrangement with wires connected and stored in the headlight bowl. I see there is a large hole in the bottom of the bowl so I'm assuming that this is the case with the H2. If any member has some detailed pics they could post to me I'd be most grateful. I've looked at the usual scources of information but nothing conclusive.

Thanks in advance

Re: Headlight Wiring for a 1972 H2 (or is there?)

Posted: Mon May 04, 2026 3:15 pm
by Wolfie
Surely all the forward connectors should inside the headlight bowl, the only external ones would be on the brake pressure switch.

Re: Headlight Wiring for a 1972 H2 (or is there?)

Posted: Mon May 04, 2026 8:48 pm
by Charlie Morriss
Looking at the H2 circuit diagram, I suspect it should be similar to the S series - in that almost all should be in the headlight bowl. That should be the ignition switch 6-way connector, the LH handlebar 4-way connector, the tacho 4-way connector and the speedo 3-way connector, along with something like 10-12 bullet male/female bullet (single and double) connectors. But I'd take Wolfie's comment about the front brake light live connector at least as being correct too.

Re: Headlight Wiring for a 1972 H2 (or is there?)

Posted: Tue May 05, 2026 9:35 am
by scouse
Wolfie wrote: Mon May 04, 2026 3:15 pm Surely all the forward connectors should inside the headlight bowl, the only external ones would be on the brake pressure switch.
Nope on the 72 H2 the ingition and handlebar switches connect under the tank

Re: Headlight Wiring for a 1972 H2 (or is there?)

Posted: Tue May 05, 2026 7:35 pm
by Wolfie
Cheers Gaz Thumbs Up