BMW K bikes (Bricks)

You are not connected. Please login or register

View previous topic View next topic Go down  Message [Page 1 of 1]


jmccrary

avatar
Silver member
Silver member
I did some searching and did not see anywhere.  I want to remove the ignition switch and replace with a maintained single-pole, single-throw switch.  I was reading the wiring diagram and just wanted to double check something.  I have never hot-wired a vehicle, but it appears that the I will need two switches.

Switch One - Red/Green wire
Switch Two - Green-Blue/Grey

Then to start the bike, both of those switches will need to be flipped "on".  

Can someone please confirm my theory?  I did some searching, but could not find anything in this area.  TIA!

    

Laitch

avatar
Life time member
Life time member
Why would Switch 2 be needed to start the bike?


__________________________________________________
1995 K75T 68,000 miles
    

BobT

avatar
Life time member
Life time member
Switch 2 would only be needed to allow the parking lights to be switched on when the engine is not running.

    

robmack

avatar
Life time member
Life time member
- Power to start the bike is provided by the switch contacts for Red - Green wire pairs
- Power to run everything connected to Fuse #2 is provided by the switch contacts for Grey/Blue - Grey wire pairs

You could achieve this equivalent function by using a DPDT switch - centre off switch.
- centre position = ignition off
- switch left = park position
- switch right = on position


__________________________________________________
Robert
1987 K75 @k75retro.blogspot.ca
2011 Moto Guzzi V7 Racer
http://k75retro.blogspot.ca/
    

92KK 84WW Olaf

avatar
Life time member
Life time member
I did that a number of years ago with my Honda CB500-4 when the ignition failed.

I quickly learned it was wise to have a second master switch on the power supply tot he ignition side and well out of the way......back then curiosity in these bikes was high and it saw people fiddling with it..ignition left on leading to flat battery.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 83,050 miles
    

Dai

avatar
Life time member
Life time member
OTOH, I have to ask - who leaves their parking lights on these days? In the UK, it's no longer a legal requirement to even have them. I'd buy an ignition switch from ebay (almost any one will do) and just connect the red across green in the 'on' position, then make a permanent connection slate to slate/blue.


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

jmccrary

avatar
Silver member
Silver member
Thanks gents! All makes sense. I was not sure if the green-blue/grey was needed once the bike was started. I was thinking of a DPST switch or relay if not we’re needed, but those are not that easy to find lol.


__________________________________________________
1985 K100 RT - going naked/cafe

Worship
    

View previous topic View next topic Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum