BMW K bikes (Bricks)


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Cromwave

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Hello, I'm from southern-central Connecticut and about a month ago I bought a stripped-down 1985 K100RT parts bike that had been sitting for a while.


It came with a "cafe fairing" front and all the luggage, plus some random plastics.. so I took it from there.

I was originally going to make it a winter project and take my time getting it running and in top shape, but I got carried away and ended up completing the entire thing in a month...

The bike had been sitting for 6 years and wasn't a runner beforehand, since it had been laid down at about 40mph (apparently). It started up with some gas, new fuses and an oil change. These bikes have my utmost admiration for the technology and quality that was put into the design.





I hope to lend some help and learn at the same time here!

    

KJustin

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Great project! Always love to see a K-bike resurrected from the dead.


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1985 K100 Cafe Racer (formerly an RT), VIN 0051736
    

Born Again Eccentric

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@KJustin wrote:Great project! Always love to see a K-bike resurrected from the dead.
+1 on that.

Resurrecting a wreck and making her look good as a cafe racer gets my thumbs up (taking a reasonable quality runner and stripping her down does not, no matter what the end product looks like!).

Well done Cromwave, she's looking really nice too.

Welcome to the forum.


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Paul

"Heidi" K100LT 1991 (Grey) (VIN 0190172 Engine No. 104EB 2590 2213) - 5th owner. January 2014 (34,000 - 61,000 miles and counting....)
"Gretel" K100LT 1989 (Silver Grey) (VIN 0177324 Engine No. 104EA 2789 2211) - 4th+ owner. September 2015 (58,500miles and counting....). Cat C Insurancewrite-off rebuild Feb 17
"Donor" K100LT 1990 (Red) (VIN 0178091 Engine No. 4489 2024) - 6th & final owner (crash write-off now donor bike). June 2012 (73,000 miles) to November 2013 (89,500 miles)
    

Dai

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Good job there!


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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)
    

sidecar paul

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Looks good Cromwave, but, in common with many 'cafe' jobs, your petrol cap is fitted the wrong way round.

There is a water drain hole on the left side of the petrol cap which gets blocked off when the cap is fitted incorrectly, so the cap recess will fill with water when it rains.

Paul.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015)
....No CARS never ever!
    

Cromwave

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@sidecar paul wrote:Looks good Cromwave, but, in common with many 'cafe' jobs, your petrol cap is fitted the wrong way round.

There is a water drain hole on the left side of the petrol cap which gets blocked off when the cap is fitted incorrectly, so the cap recess will fill with water when it rains.

Paul.

Good eye, when I got the bike the key was buggered up and drilled. So I sealed it with a rubber grommet and a carriage bolt and then flipped the cap so it doesn't fly up (by chance)

I noticed the hole when I did it and drilled it on the other side of the cap so it still works and drains. Very Happy

Thanks guys! glad you all like it. It's a great runner I hope to enjoy for a while.

    

Holister

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I noticed the hole when I did it and drilled it on the other side of the cap so it still works and drains.
The existing drain hole is for water that gets caught in the cap recess. There's a pipe connected inside which drains externally to a collection cup under the tank where it gets funneled to the rear of the bike. If you just drilled a hole on the other side, you may have water draining directly into your tank unless you've somehow connected the internal plumbing up to it.

Nice to see you have resurrected a hack into something worthwhile. Looks good.


__________________________________________________
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
    

Cromwave

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@Holister wrote:
I noticed the hole when I did it and drilled it on the other side of the cap so it still works and drains.
The existing drain hole is for water that gets caught in the cap recess. There's a pipe connected inside which drains externally to a collection cup under the tank where it gets funneled to the rear of the bike. If you just drilled a hole on the other side, you may have water draining directly into your tank unless you've somehow connected the internal plumbing up to it.

Nice to see you have resurrected a hack into something worthwhile. Looks good.

I meant to specify that I cut the hole in the cap so when it was rotated 180, it no longer covered the hole that drains under the tank. I remember seeing the cup when I took the tank off and put 2+2 on it.

Thanks!

    

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