BMW K bikes (Bricks)

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1Back to top Go down   Cable upgrade Empty Cable upgrade on Tue Nov 12, 2013 7:09 am

TIV

TIV
Silver member
Silver member
Tried to search for this but didn´t find anything about it. Maybe not be using the right words. Has anyone tried to upgrade the cables from the battery to ground and from battery to starter relay and starter in order to improve starting and to prolong battery life. I have seen kit offered for this purpose, for example Hicap. Does it work?


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1936 Harley Davidsson 750 (sold), 1964 BMW R69S (sold), 1973 Suzuki RM400 (sold), 1972 Triumph Bonneville (sold), 1971 BSA Thunderbolt (sold), 1972 BSA Lightning (sold), 1977 Yamaha XS650 (sold), 1971, BMW R75/5 (sold), 1973 BMW R75/6 (sold), 1984 BMW R100RT 1992 Yamaha FJ1200 ABS (sold), 1990 Harley Davidson Electra Glide (sold)
1990 BMW K75RT Ex-Police (owned now)
2004 BMW R1150RT iABS (owned now)

Cheers TIV
    

2Back to top Go down   Cable upgrade Empty Re: Cable upgrade on Tue Nov 12, 2013 7:33 am

K75cster

K75cster
Life time member
Life time member
It has been mentioned before to use two earth straps, but a cable with a greater cross sectional area is a good move in ensuring the power is not hindered by heat build up in the cables when cranking. car ones would work well.


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Keith - 1987 K75c with r100rt replica fairing and half of a 1984 K100rt 1992 K1100LT a blue one

The Clever are adept at extricating themselves from situations that the wise would have avoided from the outset - QUOTE from david Hillel in Out of the Earth.
    

3Back to top Go down   Cable upgrade Empty Re: Cable upgrade on Tue Nov 12, 2013 8:06 am

RicK G

RicK G
VIP
VIP
The main thing is the earth cable. Some or a lot actually came out with a very thin earth cable (5mm all up) which was totally inadequate and after a larger cable is used the difference is remarkable. The battery cable is OK but thats all and will benefit from an increase.
You said you have seen kits around or make them but often by the time you buy all the bits you may as well just buy a kit.


__________________________________________________
"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 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

4Back to top Go down   Cable upgrade Empty Re: Cable upgrade on Tue Nov 12, 2013 9:06 am

robmack

robmack
Life time member
Life time member
I replaced the thin ground cable on my K100 with a short automobile battery cable that obtained at the local auto parts store.  It is a 15-1/2" long 4Ga cable with pre-crimped ends.  You'd require a washer under the ground screw to ensure that the cable will remain in contact with the transmission case.


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

5Back to top Go down   Cable upgrade Empty Re: Cable upgrade on Tue Nov 12, 2013 9:55 am

Corkboy

Corkboy
Life time member
Life time member
I also replaced/beefed up the ground cable. 

If I remember correctly, there is an earth bolt under the tank, that a lot of stuff connects to.

I ran the extra cable from the earth terminal to this bolt, and left the original one going to the clutch/gearbox casing.


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Regards,

Corkboy '87 K100RS SE (The black one - one of the two bikes I'm sorry I sold)
             '87 K100RS 0140995 (Gone)
             '97 K1100LT 0188024 (Gone)
             '08 K1200GT Wedge - but still a K
             '08 Transalp 700
    

6Back to top Go down   Cable upgrade Empty Re: Cable upgrade on Tue Nov 12, 2013 3:49 pm

Brad-Man

Brad-Man
Life time member
Life time member
@Corkboy wrote:I ran the extra cable from the earth terminal to this bolt, and left the original one going to the clutch/gearbox casing.
As long as you don't have any audio gear/radios wired into the bike - this is a great way to cause a ground loop hum......

    

7Back to top Go down   Cable upgrade Empty Re: Cable upgrade on Tue Nov 12, 2013 5:43 pm

TIV

TIV
Silver member
Silver member
Thanks for the input. Beefing up the ground cable is obviously the way to go, I'll buy a short automobile cable tomorrow and throw it in.


__________________________________________________
1936 Harley Davidsson 750 (sold), 1964 BMW R69S (sold), 1973 Suzuki RM400 (sold), 1972 Triumph Bonneville (sold), 1971 BSA Thunderbolt (sold), 1972 BSA Lightning (sold), 1977 Yamaha XS650 (sold), 1971, BMW R75/5 (sold), 1973 BMW R75/6 (sold), 1984 BMW R100RT 1992 Yamaha FJ1200 ABS (sold), 1990 Harley Davidson Electra Glide (sold)
1990 BMW K75RT Ex-Police (owned now)
2004 BMW R1150RT iABS (owned now)

Cheers TIV
    

8Back to top Go down   Cable upgrade Empty Re: Cable upgrade on Wed Nov 13, 2013 8:43 am

dutchie

dutchie
active member
active member
oops wrong topic.

bedankt Gerrit



Last edited by dutchie on Thu Nov 14, 2013 5:14 am; edited 1 time in total


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K75RT 1996 Cable upgrade Klettern
K100RT 1986
    

9Back to top Go down   Cable upgrade Empty Re: Cable upgrade on Wed Nov 13, 2013 1:50 pm

Arlina

Arlina
Life time member
Life time member
Dick, that doesn't work for a groundcable Wink

    

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