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1974 R90S/R90/6, etc., Repro Handlebar Switches Now Available

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kirkpatrick3890
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Joined: Fri Oct 27, 2006 3:00 am
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1974 R90S/R90/6, etc., Repro Handlebar Switches Now Available

Post by kirkpatrick3890 »

Replacement /5 handlebar switches are now available, which means if you own a '74 R90S, R90/6, etc., your bike has the /5 switches and you will want to know the following since the '74 bikes have different wiring, they have a 5 position ignition switch versus '75 on 3 position ignition switches, etc.

They are available from many vintage parts suppliers but Vech digs deeper and explains more specifically what you need if you own a '74 bike.

This from Vech @ Bench Mark Works
http://www.benchmarkworks.com

I was the one that first contacted the manufacturer, and sent samples of the original switches,  and I insisted that the manufacturer modify them with screw terminals on the back of the switch (rather than hard soldered harnesses) so the harnesses can be replaced as they fall apart in the sun. 
This was my idea, but I do not have an exclusive contract, so others now offer the switches.

However, the people I contacted to make the switches, insisted on providing harnesses with each switch.
There is a problem with that. I argued against it, but they would not listen. 

The problem is,  1974 only /6 uses a different harness and has flag terminals on the end that goes in the H/L bucket.
The /5 version had simple tinned ends on the wires, to connect with the terminal board and flasher socket.

Plus, the LHS /6 has extra wires for the clutch interlock feature that the /5 version does not.
And, the 1974 only R90s had an identical harness, but of different length.

That is why I sell the same switches, without harnesses, and I offer the harnesses separate. 

The Harnesses for the /5 are:

61 31 1 351 219H--$35.50--RHS  indicator switch harness /5 
61 31 1 351 220H--$35.50--LHS indicator switch harness /5 

But the harnesses for the 1974 /6 bikes are:
61 31 1 357 521H--$35.00--RHS indicator switch harness /6 1974 only
61 31 1 357 521HS--$35.00--RHS indicator switch harness R90S 1974 only
61 31 1 357 523H--$35.00--LHS switch harness  /6  1974 only
61 31 1 357 523HS--$35.00--LHS switch harness  R90S  1974 only

And the original headlight bucket grommet that was originally made up on the harness of /6 switches, was not removable (due to the combination of flag terminals  and the fact that the wires were hard soldered into the original switches).   that grommet was not available separately, back in the day.   I have a substitute that fits and works.  And it is possible to install it because the end of the harness at the switch is not hard soldered to the switch.

61 31 1 357 521G--$1.00--Grommet for /6 bucket 1974 harness 
Mac Kirkpatrick
President, VBMWO

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