BMW K bikes (Bricks)

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1Back to top Go down   1984 K100RS Empty 1984 K100RS Fri Sep 19, 2014 8:46 pm

John in Phoenix

John in Phoenix
active member
active member
Folks-
I do need to put a battery in the 1984 K100RS.  Which one?  The battery that came with the motorcycle is a Yuasa, and it is huge!  Is a smaller battery available?
The battery cover and hardware are missing as well.  Where should I find these parts?
Thanks!
John in Phoenix

    

2Back to top Go down   1984 K100RS Empty Re: 1984 K100RS Sat Sep 20, 2014 1:56 am

JR_K100RS

JR_K100RS
Life time member
Life time member
G'day John , I use an Odyssey PC680 AGM battery in my 87 KRS , much smaller but heaps of power

JR


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

3Back to top Go down   1984 K100RS Empty 1984 K100RS battery options. Sat Sep 20, 2014 2:01 am

John in Phoenix

John in Phoenix
active member
active member
JR-
Will the original battery hold-down hardware work with the physically smaller PC680 battery?
Thank you!
John in Phoenix

    

4Back to top Go down   1984 K100RS Empty Re: 1984 K100RS Sat Sep 20, 2014 2:16 am

JR_K100RS

JR_K100RS
Life time member
Life time member
Yes it does John , the PC680 sits in the drop down section in the middle of the battery tray ( the battery can come with a metal heat shield remove that first ) next just flip over the hold down that goes across the top , I've had mine for over 5 years now , great battery with no acid spills etc

JR


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

5Back to top Go down   1984 K100RS Empty Re: 1984 K100RS Sat Sep 20, 2014 2:36 am

Mossy1200

Mossy1200
Platinum member
Platinum member
Im going to use a lithium battery.

Im not sure if 18 amp hour on a café racer would be enough.

It will have no auxiliary plugs and led tail light blinkers etc.

SHORAI LFX Lithium-Iron Powersports battery, 18Ah PbEq 12V eq, "A" polarity, Case Type 1
Length 5.83"
Width 2.63"
Height 4.13"

Shorai Batteries require a charging system output of 13.1 Volts or higher at idle, and must not exceed 15.2 volts at maximum output.
1984 K100RS A1-image View Large Image

Specifications:

Weight:2.31 lbs1.05 kgCold Cranking Amps:270



Whats everyone opinion on that as I want to place battery inside the tail hump.

    

6Back to top Go down   1984 K100RS Empty Re: 1984 K100RS Sat Sep 20, 2014 2:25 pm

brickrider

brickrider
Life time member
Life time member
I've seen mixed results with the PC680 batteries.  I've had 3 over the years.  One is absolutely amazing in its longevity (14 years now); one was a great disappointment and the other was only just satisfactory.  There seems to be reason to suspect quality control issues with these batteries. At present I have a Deka AGM battery in my K100RS (thanks EME!).  I doubt I'll ever buy another flooded-cell battery again.

    

7Back to top Go down   1984 K100RS Empty Re: 1984 K100RS Sun Sep 21, 2014 7:27 am

SEGAFREDO

SEGAFREDO
active member
active member
For me a huge battery means power, I have done the opposite on my K100, a car battery !  Smile

1984 K100RS Mini_568718CIMG2783 1984 K100RS Mini_615512CIMG2413

    

8Back to top Go down   1984 K100RS Empty Hope this helps. Fri Oct 10, 2014 1:26 pm

rover17

rover17
active member
active member
I got my battery from Chromebattery.com  last year. 

79.00 bucks, No tax and free shipping.


Search for a discount code thru Google and save another 10%.


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86' K100RS
Maintenance is as much art as it is science.
    

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