BMW K bikes (Bricks)

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ninefourteener

ninefourteener
active member
active member
Greetings,

My ignition switch "works" technically, but you can turn it with a screwdriver, so its essentially pointless.  I'm also replacing the entire front end w/ a GSXR front end and new triple tree.

Obviously OEM ignition switches aren't available, and I don't mind using an aftermarket switch (I was going to relocate it to the side of the bike anyway)....... but my switch has 5 wires.... and the only aftermarket switches I can find are 4-wire.

Does anyone know what those 5 wires are?

What aftermarket ignition cylinders are there that will work?

Rather than fighting with the 2 security screws on the top of the triple tree, I'd just assume cut the wires.... trash the triple tree (and the old ignition switch).. replace the ignition switch cylinder to an aftermarket one, and then just mount it on the side of the bike.

Need help picking a suitable new ignition switch please.

    

RicK G

RicK G
admin
admin
PM Sent with link to circuits for K100


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 2004 K1200GT 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

Zisco

Zisco
active member
active member
RicK G wrote:PM Sent with link to circuits for K100
I might also have the link it would be useful to me…
thanks


__________________________________________________
BMW k100 16v 90’
    

Holister

Holister
Life time member
Life time member
There should only be 4 wires to the ignition switch.
Red > Power
Grey > Running lights
Green > Ignition
Grey/Black > Headlight

Wiring can be different for different models. Helps to post your model and year.


__________________________________________________

1989 K100RT     VIN  0097367 (naked)  
1996 K1100RS   VIN  0451808
 91 k100 ignition switch aftermarket replacement Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

ninefourteener

ninefourteener
active member
active member
Thanks for your help folks.  I ended up finding the info in another forum.

My bike is a 1990 K100..... but I purchased an original ignition cylinder from an older K100.

My wiring = 5 wires
Older K100 = 4 wires.

I ended up not utilizing the purple wire (radio)... everything else matched up perfectly

    

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