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Key Switch Advice
- CWRoady
- Posts: 91
- Joined: Mon Jun 29, 2020 3:42 pm
- Location: SoCal
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Key Switch Advice
Thanks, Chris
1955 R50 / 1973 R75/5 / 1974 R90/6 Hack / 2015 RT
Yard Art 1968 +/- Hodaka & SACHS
- Flx48
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Re: Key Switch Advice
You're asking for opinion, so here is one!
If you would prefer to stay stock then do so, all the parts, from key to terminal board, are available these days.
If much needs doing, it's a clean delicate type of work, rather than a greasy heavy lifting work; so patience and a keen eye are the mindset to adapt for the task.
From what little you had to say about the issue, my initial guess would be the plastic insulating washer, (located between the contact plate and key switch barrel) is missing or perhaps has broken up.
I've not seen this happen, but if it were not in its location, I believe it would produce the symptoms I think you are describing.
The insulating washer has two jobs- It both separates (electrically insulates) the key switch from the contact plate, and is also the mechanical connection by which the contact plate is moved between no lights/parking light/headlight.
The insulating washer has an ID the same as the key barrel, and an OD the same as the ID of the contact plate, and flats on the bore of both mean moving one moves the other; so without the insulating washer, the key/key barrel would rotate freely within the contact plate, without moving it between any of the contacts on the topside of the terminal board.
Like I said, my 2 cents.
Best-
George
Re: Key Switch Advice
Barre, MA USA
1963 R60/2 w/ 1955 Steib S500
1973 R75/5
- CWRoady
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Re: Key Switch Advice
1955 R50 / 1973 R75/5 / 1974 R90/6 Hack / 2015 RT
Yard Art 1968 +/- Hodaka & SACHS
- wa1nca
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Re: Key Switch Advice
the key lock on one of my bikes is worn and the headlight does't always turn off when I recenter the ignition key
If I lightly push downwards on the key while turning off the headlight it will turn off the headlight
Tommy
54 R51/3, 55 R50/Velorex 560 sidecar, 64 R27, 68 R69US, 75 R75/6
Ashfield, Ma
USA
- CWRoady
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- Location: SoCal
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Re: Key Switch Advice
Thanks again for the suggestions,
Chris
1955 R50 / 1973 R75/5 / 1974 R90/6 Hack / 2015 RT
Yard Art 1968 +/- Hodaka & SACHS
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- Posts: 30
- Joined: Thu Sep 10, 2020 6:22 pm
Re: Key Switch Advice
position the 'donut ' as it's intended to be. rat tail file the allen head threaded area down. mark the donut where 1 tab will bend over when installed. carefully hand file 2 plains so the tabs LOCKS the donut in situ.
thread allen head to threads on lock.
counter sing or use a ball ended grinding bit to indent the key shaft.
now you are setting the key to be stable and in a positive position. it won't rotate when you turn the key. IF ........ you don't you'll soon find out you're in trouble .
Harry
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- Posts: 30
- Joined: Thu Sep 10, 2020 6:22 pm
Re: Key Switch Advice
if you don't , your key tumbler will NEVER seat squarely.
Harry
Re: Key Switch Advice
Barre, MA USA
1963 R60/2 w/ 1955 Steib S500
1973 R75/5
-
- Posts: 30
- Joined: Thu Sep 10, 2020 6:22 pm
Re: Key Switch Advice
..... SO what do U care what I do
to improve my own bikes electronics. Are you going to nit-pick all my threads about wiring, speedo, tires, brakes, the seat I want to use and such ?
Harry