Author Topic: 1973 Bonneville Ignition Switch  (Read 108 times)

Offline ramwing7

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1973 Bonneville Ignition Switch
« on: June 02, 2021, 09:48:26 PM »
I recently purchased a 1973 Triumph Bonneville T140V for restoration.
Guy I bought it from said it didn't have an ignition key, which was ok, but on further examination it doesn't have a ignition lock either.  It has the wrong front fork and some other missing pieces, so my question is; If it had an ignition switch, where was it mounted when it left the factory?
Thanks.

Offline L.A.B.

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Re: 1973 Bonneville Ignition Switch
« Reply #1 on: June 02, 2021, 09:59:40 PM »
It has the wrong front fork and some other missing pieces, so my question is; If it had an ignition switch, where was it mounted when it left the factory?

In the left-hand headlamp bracket. The fork being wrong probably explains why it isn't there.
L.A.B.

Offline Rex

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Re: 1973 Bonneville Ignition Switch
« Reply #2 on: June 03, 2021, 08:21:27 AM »
So what is the current (hoho) method for starting and stopping the engine, or is the whole loom missing?

Offline ramwing7

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Re: 1973 Bonneville Ignition Switch
« Reply #3 on: June 03, 2021, 06:56:26 PM »
Left headlamp bracket?  I don't have one of those, so I guess that explains it.
Not sure how they stopped the poor thing.  Only heard running on starter fluid.  When fluid stopped, engine stopped.   ;D
I suspect I'm gonna have to go the new wiring loom route.  There's some sort of mess there, but it looks like it might be impossible to sort out.
Thanks, folks.

Offline Rex

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Re: 1973 Bonneville Ignition Switch
« Reply #4 on: June 03, 2021, 10:04:16 PM »
Yebbut even on starter fluid it still needed a spark, so somewhere the ignition circuit was made before it could run.