BMW K bikes (Bricks)


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1Back to top Go down   New member/new bike Empty New member/new bike Sun Aug 29, 2021 11:12 pm

BespokeVillainy

BespokeVillainy
active member
active member
Hi folks,
I just picked up my first BMW bike an 85 K100 that I hope remains a great deal.  The PO did a great job on a restoration with a swap to a more naked look.  He rode it for a year and a half before it sputtered, died, and won't restart.  I'm trying to find the best diagnostics pages on here before I ask all of the obvious questions.  
I've built multiple bikes, was an import mechanic in my twenties specializing in electrical diagnostics, and am in the engineering side of corporate now.  
Any links to favorite diagnostic flowcharts are appreciated.
Thanks for having me,
Tim

    

2Back to top Go down   New member/new bike Empty Re: New member/new bike Mon Aug 30, 2021 7:25 am

Arlina

Arlina
Moderator
Moderator
Welcome Tim Smile

In the Portal/techpages there is lots of info.

Also; http://www.kforum-tech.com/electrical/EFI/bike-wont-start-EN.htm

And, grab a book Smile  https://mega.nz/folder/PmYCESAD#C1e0ijnsfDwqzH_evEOK2Q


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New member/new bike Eu-log10  K1100RS/LT - R1200RT - R1100RS - Cagiva SST 350 Ala Verde - K75LT project - K75 Schurgers - K75S - K1100RS - K75RT - K75C
    

3Back to top Go down   New member/new bike Empty Re: New member/new bike Mon Aug 30, 2021 9:14 am

BespokeVillainy

BespokeVillainy
active member
active member
Much appreciated!

    

4Back to top Go down   New member/new bike Empty Re: New member/new bike Mon Aug 30, 2021 9:34 am

92KK 84WW Olaf

avatar
Life time member
Life time member
Your issue could be as simple as the electrical plug connector to the gas tank adn the in tank fuel pump, a very common issue on early Ks. So too is the electrical plug connector under the seat [injection control unit] and under the headstock [ignition control unit].

Isolate if its a fuel or spark issue early on.


__________________________________________________
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

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

5Back to top Go down   New member/new bike Empty Re: New member/new bike Mon Aug 30, 2021 10:40 am

BespokeVillainy

BespokeVillainy
active member
active member
So I checked for spark with an induction timing light on a plug wire and spark is present. While cranking I can hear the fuel pump for a couple seconds and see the splash in the tank from the return lines. I'm trying to slip in and out of the garage between Skype meetings😁

    

6Back to top Go down   New member/new bike Empty Re: New member/new bike Tue Aug 31, 2021 1:46 pm

bad boy

bad boy
Life time member
Life time member
Tim, New member/new bike 177912


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Cheerz, David

New member/new bike 9438-010

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1997 Peraves Super Ecomobile: a Kevlar reinforced monocoque with outrigger wheels, seating two.
K100 fork, monolever, headlight, indicators, K1100RS gearbox and K1200RS 589 engine, rear wheel
    

7Back to top Go down   New member/new bike Empty Re: New member/new bike Wed Sep 01, 2021 2:10 am

tinyspuds

tinyspuds
Life time member
Life time member
New member/new bike 177912


__________________________________________________
1985 BMW K100RT + Hedingham HUB and LL’s. VIN 0028106.
1986 K100RS in boxes. VIN 0141918.
1954 Royal Enfield 350 Bullet. Original.
2000 Hayabusa with Charnwood chair, Wasp forks and EZS wheels.
    

8Back to top Go down   New member/new bike Empty Re: New member/new bike Wed Sep 01, 2021 5:32 am

charlie99

charlie99
VIP
VIP
sounds like the injectors have gummed up somewhat 

which i have noticed fairly often 

perhaps remove them and soak the pintle area  in injector cleaner ?

welcome aboard


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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
'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
1987 k100rs ########   "Red"  - (red sports rs TWB style )
1989 K100rt #009637   "Black Betty"  (naked rt ala Nigel , now sporting an rs main fairing )
    

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