BMW K bikes (Bricks)

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New member
New member
Hi All,

I was wondering if any one has experienced this. I have stripped down my K1100lt which is currently a cafe racer fitted with a Acewell clock and a bep 3.0. The bike ran fine last year and I also fitted a Motogadget M-lock which operated as it should. Now this winter the bike has been pulled apart and the frame and engine painted. I have stripped out all the ABS loom as it is no longer present on the bike.

So the frame has gone on to the engine fixed at the front mounting points only, I have put the loom back in, connected the clocks and all the other wires and check all my earths which are the main harness earth, Acewell clock water sender earth, motogadget earth these all go to the frame earth point and an earth from the mototronic unit which goes to the gearbox at the moment. . Now, when I activate the m-lock all I am getting on the clock is a red oil light! no horn indicators nothing, no start button.

I then pulled the loom again went and traced all the wiring to check if I has snipped a wire by mistake and all seems to be ok apart from 2 wires. Blue brown wire coming from the frame to Engine plug, this is not connected to anything and I believe it went to an ABS plug. Then I also have a white/brown wire from the main instrument plug which is the 4L warning light wire. This is also not connected to anything. Neither of these I think will cause the issue I am having.

I would point out that I have had the clocks work once then they turned off again. The engine currently has no fluids in it as I am basically trying to test the electrics.

Can anyone shed any light have I missed anything here? I have power on the positive and neutral terminals on the starter relay also. Any help would be greatly received. Thank you. nIGEL



Life time member
Life time member
Front mounting points are rubber bushed and won't complete the ground path to the battery from the frame ground under the tank. Run a ground wire between the frame ground and the ground screw on the side of the transmission.

Present: 1991 K100RS "Moby Brick Too"
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

92KK 84WW Olaf

Life time member
Life time member
You mention a 4l warning light wire. Are you sure? K1100 has 5l. Early K100 has 2, a 4 and 7l.

K100 does have side stand switch, did you do anything to that?

1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 49,200 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500

Two Wheels Better

Two Wheels Better
How about using Member's Introduction to do that, then when everyone's said their welkomes, howdees and good to see yous, then make another post in the appropriate section with the question you came here for?

Welkome, howdee & good to see you!

History is a vast early warning system ~Norman Cousins - Political Journo, Editor, Author & World Peace Advocate, 1915 - 1990 - Wikipedia
1977 R75/7-100, '93 K11/K12 Big Block, '93 K1100RS, '95 R100 Mystic, '96 K1100RS, 2 x '98 K1200RS, '06 K1200R & '09 K1300GT. Projects: 1993 & '96 K1100RS, & the 2nd '98 K1200RS

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