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K100-forum.com » Technical, repair and troubleshooting » Electrical » Alternator Compatibility

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1Back to top Go down   Alternator Compatibility Empty Alternator Compatibility Fri Feb 14, 2014 3:34 pm

k75RT Keith

k75RT Keith
Silver member
Silver member
Got offered a 50 amp alternator from a R1150RT.  The part number from BMW and the plate match and it looks like the bolt pattern is the same. if I replace the pulley with a cup should it fit?  Anyone know of this observation is correct?



Last edited by k75RT Keith on Fri Feb 14, 2014 6:15 pm; edited 1 time in total

    

2Back to top Go down   Alternator Compatibility Empty Re: Alternator Compatibility Fri Feb 14, 2014 4:01 pm

charlie99

charlie99
VIP
VIP
not sure about the r series

but please, make sure if you do it ...measure , measure , measure ..before you tighten it up
there are a couple of different cups that look similar , but project further onto the drive coupling
maybe mike p knows ?

good luck !


__________________________________________________
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 )
    

3Back to top Go down   Alternator Compatibility Empty Re: Alternator Compatibility Fri Feb 14, 2014 4:02 pm

Inge K.

Inge K.
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The 50A alternator itself is similar on both models......and a lot of others.


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

4Back to top Go down   Alternator Compatibility Empty Re: Alternator Compatibility Fri Feb 14, 2014 6:08 pm

klamityboy

klamityboy
Gold member
Gold member
charlie99 wrote:not sure about the r series

but please, make sure if you do it ...measure , measure , measure ..before you tighten it up
there are a couple of different cups that look similar , but project further onto the drive coupling
maybe mike p knows ?

good luck !
Duck would also be a great resource on this as he breaks down K's and sells parts. Also, his Frankenbrick is a composite of a number of different bikes.


__________________________________________________
Klamityboy
1991 K75RT-P

Model Description: K 75RT
Market: Europe
Type: 0565
E-Code: K569
Engine: 3_ZYL - 0,70l (55kW)
Transmission: Manual
Body Color: Polizeiweiss
Production Date: 30.08.1990
    

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