Hi all, I have a 1969 750 Commando and would like to retrofit turn signals / indicators to it to make things easier riding in built up areas and at night. It's new territory for me I've only repaired and replaced broken wiring/connectors on vehicles in the past. If you could run me through what parts are needed (will be getting the lucas stem indicator lights) and a wiring diagram that would be great. Thanks
Fitting turn signal/ indicators to '69 model
- Thread starter Josh1256
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- Nov 20, 2004
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The diagram shows a different warning light circuit to the original that only used a two pin flasher relay.
- Joined
- Nov 20, 2004
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You will need a power feed to the flasher relay (this would be from white or you could take it directly from battery negative; I suggest you add a fuse if you do that and it will be unswitched as the power to the indicators will not go through the ignition switch).
You then need a wire from the flasher relay to the handlebar switch (if your Commando still has the Triconsul switch then you'll need to add a (left-off-right) switch.
If it has an original harness, it may not have the original green/white (right) and green/red (left) wires to the indicators.
How the warning light is wired (if you intend to fit one) depends on the flasher type.
The later headlamp shell had the connection below that connects the shell to the red earth wire (it's not a connection to earth for the harness) this is the earth path for the front indicators so you may have to fit an earth wire from the shell (or each indicator stem) to harness red.
The original rear indicators used the frame (partially) as earth as the frame is not actual earth, the red wiring is earth.
You then need a wire from the flasher relay to the handlebar switch (if your Commando still has the Triconsul switch then you'll need to add a (left-off-right) switch.
If it has an original harness, it may not have the original green/white (right) and green/red (left) wires to the indicators.
How the warning light is wired (if you intend to fit one) depends on the flasher type.
The later headlamp shell had the connection below that connects the shell to the red earth wire (it's not a connection to earth for the harness) this is the earth path for the front indicators so you may have to fit an earth wire from the shell (or each indicator stem) to harness red.
The original rear indicators used the frame (partially) as earth as the frame is not actual earth, the red wiring is earth.
Thanks a lot. Just had a look at the wiring. It was upgraded to disc brake on the front and does not have a front brake switch connected (no place to even connect it on the lever). The white wire for the front brake switch is in the headlamp shell and is not being used, so could connect to a flasher relay and onto the indicator switch? I have purchased a simple indicator switch to go on the left of handlebars. To keep it simple it won't have a warning light.
- Joined
- Nov 20, 2004
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Yes.
