BMW K bikes (Bricks)

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1Back to top Go down   Need connectors Empty Need connectors on Tue Nov 11, 2014 5:43 am

Jez

Jez
Gold member
Gold member
Hey BricKies,

As I collect bits and pieces to convert my RS bar set up to RT/LT bars, I will ditch the RS rearview and so the indicators as well, I will get some aftermarket flush mounts I guess and rather than cut up the wiring on the discarded units I want to source the plugs to attach to the new indicators. This should make removing the fairing for future work easier too.

I make the wild assumption that they are Bosch bits. Anybody know where to start looking? wreckers? Bosch catalogue? I guess I can replace both male and female, but I like the idea of the option for me or even a future owner to go back to original.

Also, a question for the electronic nerds. Is my assumption correct that the rapid flash given by the BMU is triggered by a resistive value at the end of the indicator wires? If I fit LED indicators, could I fool the BMU by adding a resistor of required value?

Jez


__________________________________________________
84 K100 RS
Chassis number     0080546
    

2Back to top Go down   Need connectors Empty Re: Need connectors on Tue Nov 11, 2014 6:23 am

charlie99

charlie99
VIP
VIP
yes you could jes

the magic figure is about 21 watts worth of load for each indicator


so ohms laws tells us that 21 /12 = 1.75 amps per globe

but there maybe a better solution .... do remember ducks post about alternative light = turn indicator controllers    which are far less dependant on current of the lamps  and mods to do this

 if your leds use only a portion of that wattage then load resistors will be reguired to get the flash rate correct with the standard setup

good luck mate

it isn't hard to do


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%ONeed connectors Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

3Back to top Go down   Need connectors Empty Re: Need connectors on Tue Nov 11, 2014 6:33 am

Holister

Holister
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Life time member
@Jez wrote:....
Also, a question for the electronic nerds. Is my assumption correct that the rapid flash given by the BMU is triggered by a resistive value at the end of the indicator wires? If I fit LED indicators, could I fool the BMU by adding a resistor of required value?

Jez
Not the BMU... the flasher relay.
When fitting led blinkers... here's another option
http://www.k100-forum.com/t7153-relay-question

Cheers


__________________________________________________

1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
  Need connectors Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

4Back to top Go down   Need connectors Empty Re: Need connectors on Tue Nov 11, 2014 7:56 am

floyd

floyd
Life time member
Life time member
The connectors are just normal spade connectors...but you may have to cut the connectors on the wiring loom to attach bullet connectors, as the after market indicators you buy will have bullet connectors on them so that the connectors can fit through the bolt used to hold te indicators on.


__________________________________________________
K100 with lots of K1100 bits - mongrel of a thing...
    

5Back to top Go down   Need connectors Empty Re: Need connectors on Tue Nov 11, 2014 10:22 am

robmack

robmack
Life time member
Life time member
@Jez wrote:Also, a question for the electronic nerds. Is my assumption correct that the rapid flash given by the BMU is triggered by a resistive value at the end of the indicator wires? If I fit LED indicators, could I fool the BMU by adding a resistor of required value?
If you feel brave, open up the BMU and cut the trace on the board that enables the hyperflash feature. Once done, you have a BMU that can handle LEDs or globes equally. Instructions at this URL:
http://classickbikes.com/ckb.tech/0.ckb.tech.files/ledoemflrelay/ledoemflrelay.htm
(Note: Though Duck severs the IC pin, an easier route is to cut the trace on the underside of the board. It becomes reversable)


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

6Back to top Go down   Need connectors Empty Re: Need connectors on Tue Nov 11, 2014 3:37 pm

floyd

floyd
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@robmack wrote:
@Jez wrote:Also, a question for the electronic nerds. Is my assumption correct that the rapid flash given by the BMU is triggered by a resistive value at the end of the indicator wires? If I fit LED indicators, could I fool the BMU by adding a resistor of required value?
If you feel brave, open up the BMU and cut the trace on the board that enables the hyperflash feature.  Once done, you have a BMU that can handle LEDs or globes equally. Instructions at this URL:
http://classickbikes.com/ckb.tech/0.ckb.tech.files/ledoemflrelay/ledoemflrelay.htm
(Note: Though Duck severs the IC pin, an easier route is to cut the trace on the underside of the board.  It becomes reversable)

does performing this mod mean the BMU is fooled and performs as normal? I.e the fast flash returns if an indicator is broken?


__________________________________________________
K100 with lots of K1100 bits - mongrel of a thing...
    

7Back to top Go down   Need connectors Empty Re: Need connectors on Tue Nov 11, 2014 5:26 pm

robmack

robmack
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does performing this mod mean the BMU is fooled and performs as normal? I.e the fast flash returns if an indicator is broken?
No. The BMU has the hyperflash feature disabled by letting pin 7 float (it is normally grounded). With this mod if an indicator lamp blows, the flash rate will not change, as would be the case with an unmodified BMU.


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

8Back to top Go down   Need connectors Empty Re: Need connectors on Tue Nov 11, 2014 5:40 pm

Jez

Jez
Gold member
Gold member
I'd just go with a resistor in line Floyd, the BMU I guess should supply a hyperflash should the indicator circuit be broken or LEDs fail. If this is wrong, I'm sure I'll be corrected soon.
What a Face

Jez


__________________________________________________
84 K100 RS
Chassis number     0080546
    

9Back to top Go down   Need connectors Empty Re: Need connectors on Tue Nov 11, 2014 7:33 pm

Holister

Holister
Life time member
Life time member
Just so you don't go modifying the wrong component. Unless I'm mistaken and you're talking about something else Shocked the BMU doesn't control the flashers and is not connected to the flasher circuit. The flasher relay does that and its located in the rear left corner of the electrical box.


__________________________________________________

1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
  Need connectors Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

10Back to top Go down   Need connectors Empty Re: Need connectors on Tue Nov 11, 2014 7:41 pm

Jez

Jez
Gold member
Gold member
Just so you don't go modifying the wrong component. Unless I'm mistaken and you're talking about something else Need connectors Icon_eek the BMU doesn't control the flashers and is not connected to the flasher circuit. The flasher relay does that and its located in the rear left corner of the electrical box.



Hadn't even crossed my mind Kap'n as I'll go down the added resistor route. I'd like to to keep the "Indicator Malfunction Indicator Function" functioning.

Thank you for your wise words tho.

Jez



Last edited by Jez on Tue Nov 11, 2014 7:46 pm; edited 1 time in total (Reason for editing : cos I go off half cocked)


__________________________________________________
84 K100 RS
Chassis number     0080546
    

11Back to top Go down   Need connectors Empty Re: Need connectors on Wed Nov 12, 2014 7:34 am

Inge K.

Inge K.
VIP
VIP
Good that it was sorted.........or you could have ended up with a hyperflashing tail light.... Rolling Eyes .

Jez, if I understand your question correct you want to put on new indicators and
connect these to the allready existing RS connectors? Then you need..........
4 contacts BMW part #61 13 1 365 099.
2 contact housing BMW part #61 13 1 369 747.


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

12Back to top Go down   Need connectors Empty Re: Need connectors on Wed Nov 12, 2014 4:33 pm

floyd

floyd
Life time member
Life time member
@Inge K. wrote:Good that it was sorted.........or you could have ended up with a hyperflashing tail light.... Rolling Eyes .

Jez, if I understand your question correct you want to put on new indicators and
connect these to the allready existing RS connectors? Then you need..........
4 contacts BMW part #61 13 1 365 099.
2 contact housing BMW part #61 13 1 369 747.


Problem is.....

Any aftermarket flush mount LED indicators one purchases will have a different mounting system. They will have a hollow bolt incorporated into the indicator housing that is used to mount the indicators to the fairing. The indicator wires pass through this hollow bolt. Which means that the new indicators wires and connectors must be able to fit through the hole in the fairing as well as the nut that goes onto the mount bolt to hold it on. Most connectors blocks will make this impossible.

Spade connectors (that are on the stock wiring loom) can be attached to the new indicators, but you have to make sure they will still fit through the nut. The new indicators will come with bullet type connectors for this very reason. 

I cut off the bullet connectors from the indicators and soldered on spades. They only JUST fit through the nut, one at a time, and I have to be careful not to damage the insulation. It would be better to have cut the spades off the loom and soldered on bullets to suit.

my $0.02 Smile


__________________________________________________
K100 with lots of K1100 bits - mongrel of a thing...
    

13Back to top Go down   Need connectors Empty Re: Need connectors on Wed Nov 12, 2014 6:18 pm

Jez

Jez
Gold member
Gold member
'Any aftermarket flush mount LED indicators one purchases will have a different mounting system. They will have a hollow bolt incorporated into the indicator housing that is used to mount the indicators to the fairing."

Yeah but nah, something like THIS .

Thanks Inge, for the part numbers (had no idea it was a multi part affair!)

Regards, and thanks for the input all.

Jez



Last edited by Jez on Wed Nov 12, 2014 6:21 pm; edited 2 times in total (Reason for editing : trying to insert a quote!)


__________________________________________________
84 K100 RS
Chassis number     0080546
    

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