BMW K bikes (Bricks)


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1Back to top Go down    K1100 rear light on Mon May 18, 2015 11:00 am

DeRodster

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Howdy,
My pal's tell me my rear light could be brighter.
I did replace the bulb, but am wondering if I am using the correct one.
Or maybe there is something brighter I could use.

Any enlightenment appreciated
ta
Rod


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1992 K1100LT 6455194, 1943 BSA WM20.
    

2Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 11:18 am

RicK G

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The enlightenment was needed at the factory around 30 years ago. Neither the stop or tail light are what I class as even adequate. I have gone for a brighter tail light and some extra LEDs on the stop light and even then they aren't that good.
My personal feeling is that the red lens is where the problem is but getting an aftermarket light that fits and suits is a big ask


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

3Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 11:23 am

DeRodster

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Yes and what a pity Rick G
and the headlight's I find really good.
I had thought myself it was the red lens,
but as you say replacing it would be difficult.
I will try a LED type and see if that make 'em happier
Alternatively I will have a look at maybe adding a smaller one below the existing setup.

more anon
R


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1992 K1100LT 6455194, 1943 BSA WM20.
    

4Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 11:31 am

92KK 84WW Olaf

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Rod

The rear bulb comes in a 5Watt and a 10W version. Most places only give you the 5W but the K needs the 10W. the 4W is very dim.

For what its worth I took mine out and clean the bulb and also took out the rear light and washed it out. no metal parts inside so you can do that but make sure its completely dry before refitting it.


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1992 K100LT 0193214 101,000 miles
1984 K100RT 0022575 Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 58,645 now 60,500 miles
    

5Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 12:07 pm

RicK G

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I was just having a cruize around on fleabay looking for some sort of LED tail light that might adapt to the Ks and came across these. http://www.ebay.com.au/itm/Universal-LED-Laser-Rear-Tail-Indicator-Lamp-Fog-DIY-Light-Trailer-Car-Truck-Red-/381144314351?pt=LH_DefaultDomain_15&hash=item58bdf8b1ef
Has anyone seen them or had some experience with them. Seems like the idea is good but as usual it's the quality of the product that counts.


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

6Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 1:10 pm

Holister

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@92KK 84WW Olaf wrote:Rod

The rear bulb comes in a 5Watt and a 10W version. Most places only give you the 5W but the K needs the 10W. the 4W is very dim.

For what its worth I took mine out and clean the bulb and also took out the rear light and washed it out. no metal parts inside so you can do that but make sure its completely dry before refitting it.
Did that with mine. It made a big difference but still not bright enough imo. Be carefull tho. My PO had put a larger wattage in the tail and the plastic is very scorched and a little melted inside.

@RicK G wrote:I was just having a cruize around on fleabay looking for some sort of LED tail light that might adapt to the Ks and came across these. http://www.ebay.com.au/itm/Universal-LED-Laser-Rear-Tail-Indicator-Lamp-Fog-DIY-Light-Trailer-Car-Truck-Red-/381144314351?pt=LH_DefaultDomain_15&hash=item58bdf8b1ef
Has anyone seen them or had some experience with them. Seems like the idea is good but as usual it's the quality of the product that counts.
I was looking at those just last night. I think they're meant to be supplementary to existing taillight. You'd best check with RMS on their legality because some lasers over 1mW are illegal in AU these days and that one is 200mW. There are exceptions.
But I think its cool idea. It creates a no-go-zone, a line not to be crossed... but then you'd get those jerks that would do that just for fun What a Face kinda jerky face... I've not used that one before



Last edited by Kaptain Holister on Mon May 18, 2015 1:25 pm; edited 1 time in total


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1988 K100RT     VIN No.  0094680
1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
     Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

7Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 1:22 pm

92KK 84WW Olaf

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Standard spec for the K is 10W?


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1992 K100LT 0193214 101,000 miles
1984 K100RT 0022575 Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 58,645 now 60,500 miles
    

8Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 2:08 pm

RicK G

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I was thinking about the legal side and that because they can be tilted there is a chance they could get into a position that would cause chaos if it was going back and up into the eyes of the following driver.


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

9Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 2:17 pm

Holister

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Rick, I've bought a bit from China just recently and I have to say the quality looks ok. Not great but the finish is very acceptable. I bought a couple of Cree 30w 2500Lm spots for about AUD$14 each. They're small, light at about 180g, the finish is good and they've got a nice even light pattern. They even have a ½power setting.
I found one of those laser taillights for USD$4.40. At that price even if its no good you'd probably get 5 bucks worth of fun out of it.  :pirat:

As for LED taillight bulbs. At 3W 300Lm they'd be brighter than a 10W incandescent but how would they go with the BMU???
http://www.ebay.com/itm/4x-1157-BAY15d-50SMD-LED-Car-Brake-Stop-Tail-Light-Signal-Lamp-Bulb-S-White-12V-/281527929030?pt=LH_DefaultDomain_2&hash=item418c5f48c6&vxp=mtr


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1988 K100RT     VIN No.  0094680
1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
     Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

10Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 3:56 pm

Dai

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There is another solution but you need a shedload of patience and a steady hand. The glue line round the lens-to-backing assembly isn't as tough as you think. Take a very sharp (i.e. new) Stanley/Xacto blade and follow the glue line. Start with a very light pressure to mark the line out, then gradually increase pressure on each pass. The lens eventually just pops off (at least, mine did). I then scrubbed the entire backing assembly with brake cleaner, sprayed it with 'chrome' paint and glued it back together. There's a distinct improvement in light output. Unfortunately the only evidence I can offer is a photograph of the refinished tail-light.


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'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)
    

11Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 6:43 pm

Avenger GT

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http://www.k100-forum.com/t1833p250-85-rt-resto-my-attempt-hey-im-not-into-making-a-show-bike

You could do what I did, taking Charlie 99s idea a step farther.

    

12Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 9:13 pm

robmack

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Use a OEM lens assembly to make a mold to cast a new lens, but clear instead of red.  Then outfit the tail light assembly with high intensity LEDs.


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

13Back to top Go down    Re: K1100 rear light on Mon May 18, 2015 10:10 pm

Stan

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Here is another idea that Albatross 1 came up with a few years ago. Not sure whether it addresses all the concerns, but it could be modified.

Leds are wired into the existing wiring, in this case with the brake light.

I cut some aluminum angle and glued in into the side recesses of the light and then used double sided tape with the leds. These leds are additional to the brake light and do not affect the system to monitor the bulb, in fact if the bulb blows the warning dash light comes on.
Just a bit more for safety.



Last edited by ainsjac on Mon May 18, 2015 10:12 pm; edited 1 time in total (Reason for editing : safety)


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1983 K100 basic vin 0003960 colour red
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl
    

14Back to top Go down    Re: K1100 rear light on Tue May 19, 2015 12:51 am

JR_K100RS

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G'day Rod ,
                take a look at this thread , I did the mod for my K100RS , it works a treat

http://www.k100-forum.com/t4605-rs-tail-light

John R


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Diamond Grey ( 617 ) 1987 K100RS ( European Delivery ) Original owner
    

15Back to top Go down    Re: K1100 rear light on Tue May 19, 2015 3:51 am

blaKey

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This is what i have fitted to both of my K's.

Truly plug and play, no cutting any wires and effectively doubles the size of your tail light and stop light.

Huge difference!

Simple.


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Neil
K100RS 1986 RED!
K100RT 1987 (now nekkid with red bits)

Remember Rule No. 6
    

16Back to top Go down    Re: K1100 rear light on Tue May 19, 2015 4:36 am

AL-58

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@92KK 84WW Olaf wrote:Standard spec for the K is 10W?
Yes it is, some 10W bulbs will not fit as they have a larger sized glass globe.  You can get the 10 with a smaller glass though.

Al


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'87 K100RS/HRD sidecar (1100 motor)  sc25 
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

    

17Back to top Go down    Re: K1100 rear light on Tue May 19, 2015 8:33 am

92KK 84WW Olaf

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Halfords have the smaller 10W in a twin pack.


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1992 K100LT 0193214 101,000 miles
1984 K100RT 0022575 Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 58,645 now 60,500 miles
    

18Back to top Go down    Re: K1100 rear light on Tue May 19, 2015 8:44 am

charlie99

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@blaKey wrote:This is what i have fitted to both of my K's.

Truly plug and play, no cutting any wires and effectively doubles the size of your tail light and stop light.

Huge difference!

Simple.

a good option blakey

thanks for the reminder ...many may not have seen this before


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

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

19Back to top Go down    Re: K1100 rear light on Tue May 19, 2015 9:03 am

92KK 84WW Olaf

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Not seen that one before and looks to be the business. A perfect Christmas or birthday present for a K owner.......


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1992 K100LT 0193214 101,000 miles
1984 K100RT 0022575 Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 58,645 now 60,500 miles
    

20Back to top Go down    Re: K1100 rear light on Tue May 19, 2015 12:34 pm

JR_K100RS

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yup , this is the kit that I installed and are referring to in post 14 ( with pics ! )

John R


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Diamond Grey ( 617 ) 1987 K100RS ( European Delivery ) Original owner
    

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