Author Topic: Starter motor keeps cranking, regularly. relay?  (Read 3739 times)

Offline TajMan

  • Motobrick Curious
  • Posts: 30
Starter motor keeps cranking, regularly. relay?
« on: September 10, 2013, 11:10:34 AM »
I've been experiencing this issue way too often on my '93 K1100lt.
Start bike, I hear starter still cranking, I have to remove seat- lift gas tank up- lift cover up- and tap on starter relay box to get it to stop!

On one hand I heard this can happen more easily with a weak battery. But I had just rebuilt my alternator and I have a brand new battery!

Could I just need a new relay? Is it a starter relay or starter solenoid? Is there a radioshack or other cheaper part I car source besides BMW OEM?

Offline TimTyler

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  • Posts: 1884
Re: Starter motor keeps cranking, regularly. relay?
« Reply #1 on: September 10, 2013, 12:18:22 PM »
Replace your relay.

Once it gets stuck once, the contact surfaces enjoy getting stuck again.

Offline bmw-rider

  • Motobrick Curious
  • Posts: 16
Re: Starter motor keeps cranking, regularly. relay?
« Reply #2 on: September 10, 2013, 01:41:27 PM »
check the brushes of the startermotor they are probably worn

Offline wmax351

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  • Posts: 1237
Re: Starter motor keeps cranking, regularly. relay?
« Reply #3 on: September 10, 2013, 02:21:52 PM »
Yeah, grab a relay. Can't hurt to pull the starter and clean the brushes/commutator as well.


I've seen cheaper ones sourced from bosch before. Euromotoelectrics has one for 66 [size=78%]http://www.euromotoelectrics.com/BOSCH-Starter-Relay-BMW-K-61-31-1-459-008-p/rel-k008.htm[/size]


Take a look at your relay, and see if there are part numbers on it. Bosch or tyco will sell one similar.
  • Albuquerque, NM
  • 91 BMW K75 Standard, 98 Moto Guzzi California EV
Bikes:
Current:1991 BMW K75 Standard, 1998 Moto Guzzi California EV11
Past: '83 BMW R65LS, '75 Honda CB550F, '69 Honda CB175, 1999 Royal Enfield Bullet 500, 1973 Triumph Tiger TR7V, 1971 BMW R75/5 in Toaster outfit, 1979 Harley Davidson XLS-1000 Sportster Roadster

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