BMW K bikes (Bricks)


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1Back to top Go down   Where'd my choke light go? Empty Where'd my choke light go? Tue Jul 03, 2018 1:00 am

duck

duck
Life time member
Life time member
(Applies to 2V Ks only.)

At least in the US, K bikes no longer had a choke indicator light in the cluster after 1990.  However, it's quite easy to get that functionality back on 91+ bikes.  All you need is a piston switch (same as the switch used for the front brake and clutch) and a spacer ring. Even though BMW didn't install the switch, the wiring that connects it to the cluster is still there.

The switch installs in a threaded hole in the rear of the throttle bodies.  It's easiest to do this if you get the throttle position sensor and crank case breather hose out of  the way. Then use an 11mm open end box wrench to install the switch with the spacer ring below it.

Here's a picture I took from a 91 K75S I just did this to:

Where'd my choke light go? Choke_10


Once you have the switch installed look for an unused two wire connector (violet/white & brown) under the front left of the gas tank.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

2Back to top Go down   Where'd my choke light go? Empty Re: Where'd my choke light go? Tue Jul 03, 2018 7:03 am

robmack

robmack
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Would you also have to install a new bulb in the appropriate lamp socket inside the instrument cluster? Or is that bulb supplied by BMW anyways?


__________________________________________________
Robert
1987 K75 @k75retro.blogspot.ca
http://k75retro.blogspot.ca/
    

3Back to top Go down   Where'd my choke light go? Empty Re: Where'd my choke light go? Tue Jul 03, 2018 8:29 am

Ringfad

Ringfad
Life time member
Life time member
I have done this on my k1 - success :-)  but on my k1100rs (93) I added the switch to discover  the wire is missing from the loom that feeds the bulb (i.e. no pin in the plug), when time permits I will retrofit a wire. I don't recall having to fit a bulb but it only takes a few minutes to add one.


__________________________________________________
Where'd my choke light go? Ir-log10

   ;BMW; K100RS Style Black 1987 105K Km     ;BMW; K1 Black 1993 60K Km     ;BMW;  K1100RS Black 1996       ;BMW; K1 Blue 1990 25K Miles
    

4Back to top Go down   Where'd my choke light go? Empty Re: Where'd my choke light go? Tue Jul 03, 2018 9:20 am

Point-Seven-five

Point-Seven-five
Life time member
Life time member
I have retrofitted that switch to four bricks now, and yes, the bulb is in the cluster of K75's and K100's so you just need to add the switch.  I haven't used the spacer, just adjust how far I screw it in.  Be prepared to spend some time getting it screwed in.  I have found that a hair dryer to soften up the switch's cable can make the job a bit easier if you do it in a cold garage.


__________________________________________________
Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

5Back to top Go down   Where'd my choke light go? Empty choke light Tue Jul 03, 2018 10:24 am

caveman

caveman
Life time member
Life time member
Thanks for the tip on adding a choke light to 90+ bricks. Hate to admit this but I spent time trying to troubleshoot this before I realized that it was not installed from the factory. The good news is I did take the time to bend my float arm for the low fuel light so it didn't come on with over a 100 miles of range left in the tank (got it set to come on with one gallon left, 40-50 miles depending), love having 250 mile range on the 75s!

    

6Back to top Go down   Where'd my choke light go? Empty Re: Where'd my choke light go? Fri Aug 10, 2018 3:25 pm

Ringfad

Ringfad
Life time member
Life time member
Just added one to my K100 16v and the bulb now works, it was already in the console.

This are a bugger to fit on the bike. It is in a really awkward position to screw in.

So if you have the throttle bodies off the bike fit it then.


__________________________________________________
Where'd my choke light go? Ir-log10

   ;BMW; K100RS Style Black 1987 105K Km     ;BMW; K1 Black 1993 60K Km     ;BMW;  K1100RS Black 1996       ;BMW; K1 Blue 1990 25K Miles
    

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