Starting issue - BMW Luxury Touring Community
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post #1 of 7 Old Oct 19th, 2019, 5:43 pm Thread Starter
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Starting issue

I own a 2002 k1200lt. When I bought it about a month ago I put a new battery on it and fixed a broken wire. Cranked right up and I’ve rode it several times. Now it will not start. I can hear the fuel pump prime and the dash lights will come on for a short time and then dim but I hear nothing from the starter. Any suggestions?? Thanks in advance.
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post #2 of 7 Old Oct 19th, 2019, 6:10 pm
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Re: Starting issue

Hopefully you won't find what I'm about to say insulting but have you checked to make sure the bike is in neutral with the side stand deployed.
I fell for that once while out on a ride just after I bought mine and my heart sank for a moment before I realized what I had done.
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post #3 of 7 Old Oct 19th, 2019, 6:26 pm
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Re: Starting issue

if you haven't ridden it for a couple of weeks your battery is probably flat if it it been sitting without a battery tender, they have a serious current draw through the radio etc even if it is not going. from your description it can really only be (spark Battery) or fuel first thing to do is check and charge the battery.
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post #4 of 7 Old Oct 19th, 2019, 6:43 pm
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Re: Starting issue

The 02 and newer have a built in low voltage cut out on the starter relay if the voltage is too low on the battery. This is to prevent a low voltage cranking fusing of the starter relay in the shut position. If you hear the fuel pump prime, then your interlocks all good. Likely a low battery as stated.

EDIT. Check for the tag "Anlassermodul" on the diagnostic plug harness. If retrofitted properly, it would be there to alert technicians of the newer relay and circuitry.
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Gordon
Sugar Hill, GA
2001 K1200LTI Champagne (current ride) Lazy Susan
1998 R1100RT Never should have sold it
1974 Yamaha TX 750 Twin. Omni Phase Balanced


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Last edited by bmwcoolk1200; Oct 20th, 2019 at 9:20 am.
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post #5 of 7 Old Oct 20th, 2019, 7:59 am
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Re: Starting issue

The "02" does not have the low voltage cut-off that came in, I believe in "05", so there is still a danger of fused contacts with a low battery condition. I would pay close attention to the starter after charging the battery to see if it is running continually when bike is started , if so disconnect battery so as not to fry wiring. Then either follow the procedure to unstick the starter relay contacts or replace with the new improved relay.

Pat Rourke
White Lake,MI.
2002 K1200 LTC, Champange

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post #6 of 7 Old Oct 20th, 2019, 8:18 am
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Re: Starting issue

Quote:
Originally Posted by patroa1 View Post
The "02" does not have the low voltage cut-off that came in, I believe in "05", so there is still a danger of fused contacts with a low battery condition. I would pay close attention to the starter after charging the battery to see if it is running continually when bike is started , if so disconnect battery so as not to fry wiring. Then either follow the procedure to unstick the starter relay contacts or replace with the new improved relay.
Yep, there I go giving bad information again. Thought it was 02 but the Max BMW fiche does list it as from 01/05 for the blue updated relay. Thanks for catching that. It is possible that his bike has already been upgraded to that relay as I have done to mine. If the upgrade was done properly, there should be a tag applied to the diagnostic plug "Anlassermodul" to alert technicians that it has the retrofit.

Gordon
Sugar Hill, GA
2001 K1200LTI Champagne (current ride) Lazy Susan
1998 R1100RT Never should have sold it
1974 Yamaha TX 750 Twin. Omni Phase Balanced


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post #7 of 7 Old Oct 20th, 2019, 8:28 am
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Re: Starting issue

Quote:
Originally Posted by patroa1 View Post
The "02" does not have the low voltage cut-off that came in, I believe in "05", so there is still a danger of fused contacts with a low battery condition. I would pay close attention to the starter after charging the battery to see if it is running continually when bike is started , if so disconnect battery so as not to fry wiring. Then either follow the procedure to unstick the starter relay contacts or replace with the new improved relay.
Gordon was correct in his earlier post: at the factory, the new Starter Realy was introduced in 2001, but for the USA market these models were sold mainly as 2002 and later (also having the new iABS with servos).

There is an official Service-Bulletin for BMW-USA published in August 2001, that says all VIN from "ZD77402" (last 7 digits) will have the new Strarter Relay. At the factory this VIN corresponds to a production date of JULY-2001.

KEEP IN MIND there is a "retrofit kit" for ealier K1200LT, so you will find on the used market a few earlier K1200LT having the new Relay installed using this kit. The only sure way to know is to open the Relay junction box under fuel tank and check size and color. Personally, I would not assume the tag was applied to Diagnostic Plug in every case...

ALSO keep in mind there has been a few isolated cases reported here and on the K1200RS forum of these new "smart" Starter Relay going bad with age. The built-in eletrpnoc circuitry would just fail and the Relay would assume your Battery voltage was below acceptable threshold - hence not providing activation of the Starter.
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K1200RS (2002 IceBlue/Red - 96,000 miles)
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Last edited by sailor; Oct 20th, 2019 at 8:36 am.
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