BMW K bikes (Bricks)


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mmgee123

mmgee123
active member
active member
Hey everyone I own a 1988 k100 and it appears that my starter has went bad so i’m replacing the starter! I’ve removed the 2 bolts and the wire that leads to the starter, even opened the engine cover (drained the oil) and sprayed infinite PB Blaster, and it still won’t budge anyone know why that might be?


Edit: once the bolts were out and wire was disconnected the only thing holding it in was the o ring i sprayed some pb blaster and let it sit over night and gave it a good wiggle and it eventually loosened up and came out. good luck!



Last edited by mmgee123 on Tue May 21, 2024 6:50 pm; edited 1 time in total

    

duck

duck
Life time member
Life time member
If you've removed the two bolts at the rear that hold it to the transmission then it will come out. Wobble it around and pull harder.

There's an O-ring on the front of it that seals and you need to overcome that.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

jbt

jbt
Life time member
Life time member
mmgee123 wrote: even opened the engine cover (drained the oil) and sprayed infinite PB Blaster,
This is clearly not a good idea. Carefully drain and rinse the engine before starting it again.


__________________________________________________
Let us enjoy the transient delight
That fills our fairest day.
    

duck

duck
Life time member
Life time member
If you took the crank cover off then be sure to use a torque wrench on the cover bolts when putting them back on. (Working out from the center in an X pattern.)

The engine cover bolts are "shoulder" bolts and will strip threads if over-torqued.

8 Nm


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

Dai

Dai
Life time member
Life time member
There is also the likelyhood that the rubber washers have gone hard and will no longer seal now they have been disturbed. Replace them for safety.


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

Laitch

Laitch
Life time member
Life time member
Are you removing the starter because you believe its failure is the cause of the buzzing you were hunting described here—'88 k100 not starting?
duck wrote:If you've removed the two bolts at the rear that hold it to the transmission then it will come out. Wobble it around and pull harder.
Spray your Blaster on the joints where the starter is bolted down, go have a Whoopee Pie and some coffee then when you return, give it a go. It's ok to tap it gently upwards or sideways with a screwdriver handle or soft mallet to loosen it but don't go all he-man on it Smile .

Start at 2:36 in this video.


__________________________________________________
1995 K75 90,000 miles
    

MartinW

MartinW
Life time member
Life time member
A mate had a stuck starter. After spraying it with penetrant I managed to get para cord around the mounting lugs. Using a screwdriver through the para cord  I levered the starter back while wriggling it side to side. after a few tries it broke free. It was refitted using Never Seize.
Regards Martin.


__________________________________________________
1992 K75s
    

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