Author Topic: Lighting switch wiring question  (Read 215 times)

Offline jmatch

  • Moving Up
  • **
  • Join Date: Apr 2016
  • Posts: 6
  • Karma: 0
Lighting switch wiring question
« on: 07.08. 2020 00:39 »
Greetings,
      I'm trying to get my A10 ('58 SR, more or less) wired up and I can't understand a couple of things on the lighting switch.  Power comes in to terminal 3 but the tail light and speedometer light are connected via terminal 5.  How does the electricity reach #5?  My switch shows no continuity between terminals except for the two connected by the moving roller.  In the off position the roller touches terminals 4 and 5.  In the middle position 3 and 4, and in the on position 2 and 3.  Someone show me the simple solution here, I'm stuck and have wasted enough time and have other areas that need time wasting!  Thanks for any help and thanks to a10gf for the wiring diagram! 

Offline jmatch

  • Moving Up
  • **
  • Join Date: Apr 2016
  • Posts: 6
  • Karma: 0
Re: Lighting switch wiring question
« Reply #1 on: 07.08. 2020 04:59 »
OK I figured out what was going on here, there is supposed to be conductive wiper connecting terminal 5 to the rotating center portion of the switch, which when the switch is moved to contact terminal 3 in park or normal light positions conducts current to terminal 5.  On to the next issue...

Online JHG1958

  • A's Best Friend
  • ***
  • Join Date: Sep 2019
  • Posts: 77
  • Karma: 2
Re: Lighting switch wiring question
« Reply #2 on: 07.08. 2020 12:37 »
I have just bought a new switch from eBay.  It is meant to be a Lucas type 41SA switch.  I have checked it out and is has the switching as per the picture.

John

Offline muskrat

  • Global Moderator
  • Wise & Enlightened
  • **
  • Join Date: Jul 2009
  • Posts: 8673
  • Karma: 112
  • Lithgow NSW Oz
    • Shoalhaven Classic Motorcycle Club Inc
Re: Lighting switch wiring question
« Reply #3 on: 07.08. 2020 13:21 »
G'day Fellas.
Much easier for us if you save pics as jpeg to post. Saves downloading then opening the download folder to see it.
Just a suggestion.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Offline azcaveman

  • Moving Up
  • **
  • Join Date: Aug 2020
  • Posts: 15
  • Karma: 0
  • Retired techo geek
Re: Lighting switch wiring question
« Reply #4 on: 02.09. 2020 02:56 »
The table is a bit odd for switch notation but I think it indicates- Left position has continuity from terminals 4 to 5 and from Common to 7. Middle position has continuity from 3 to 4 and 3 to 5. An ohmmeter will confirm if my guess is good or bad.