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1Back to top Go down   help!!! engine doesn't start Empty help!!! engine doesn't start on Mon Apr 14, 2014 1:54 pm

emmanuelfiadjoe

emmanuelfiadjoe
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i tried to start the bike & the battery was low, then even though i turned the key & the emergency shut down off,  the starter & engine turned weakly continuously about 4 times b4 the battery completely fell.
i got a new batt but when i tried to connect it, the starter & engine turns even though key is off.
to take off tank so pulled off the electrical cable to the fuel pump, i then connected the batt but this time the starter didn't turn until i turned on the ignition. reconnected the electrical cable to fuel pump & tried to start, the starter & engine turns but the engine doesn't start. i tested 1 spark plug & its ok but still the starter & engine turns but engine doesn't start.
help!!! please

    

2Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Mon Apr 14, 2014 2:12 pm

charlie99

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check the rest of the fuses first


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'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Ohelp!!! engine doesn't start Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

3Back to top Go down   help!!! engine doesn't start Empty the fuses are fine on Mon Apr 14, 2014 2:19 pm

emmanuelfiadjoe

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the fuses are ok

    

4Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Mon Apr 14, 2014 2:37 pm

charlie99

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can you hear the pump running ?  (should run for about 1.5 seconds after the start button is pressed ..)



Last edited by charlie99 on Mon Apr 14, 2014 2:37 pm; edited 1 time in total


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Ohelp!!! engine doesn't start Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

5Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Mon Apr 14, 2014 2:37 pm

k75RT Keith

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Open the gas cap and then turn on the ignition.  Listen for the pump It won't run a lot, as it only has to pressurize the system.   if the pump doesn't make a sound, then either the connector is not completely connected or the pump bit the big one. 


If it tires to start without the ignition being on, you may have welded the relay.  List tank and locate the starter relay (back edge of relay box with thick wires.  Tap/whap it with the back of a screwdriver that will generally free the relay contacts.

Could have flooded it if the pump runs.  Wait about 20 minutes and try it again



Last edited by k75RT Keith on Mon Apr 14, 2014 2:39 pm; edited 1 time in total (Reason for editing : additional content)

    

6Back to top Go down   help!!! engine doesn't start Empty pump runs on Mon Apr 14, 2014 2:49 pm

emmanuelfiadjoe

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i hear the whining sound of the pump,
about to check the relay

    

7Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Mon Apr 14, 2014 2:53 pm

92KK 84WW Olaf

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Relay is welded, happens trying to start with a weak battery, lots of posts on it. You can open it up and sort it or get a replacement. Keith has it picked up and you need to do as he said. Hopefully that will sort it.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska 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 105,200 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell Now 36,188  miles
    

8Back to top Go down   help!!! engine doesn't start Empty the relay is fine on Mon Apr 14, 2014 3:19 pm

emmanuelfiadjoe

emmanuelfiadjoe
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the relay & everything in the box is fine, the wires too are fine

    

9Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Mon Apr 14, 2014 3:29 pm

92KK 84WW Olaf

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i got a new batt but when i tried to connect it, the starter & engine turns even though key is off.

As far as I know this happens when the relay is welded.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska 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 105,200 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell Now 36,188  miles
    

10Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Mon Apr 14, 2014 5:39 pm

k75RT Keith

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Relay may "look fine" but if the starter turns with the key off or out, then the relay is welded. Disconnect the battery, lift the tank , remove the outer cover and rap it a good one. Reconnect and see if it still tries to start when off.

    

11Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Mon Apr 14, 2014 8:54 pm

RicK G

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You can remove the outer cover of the relay and have a look at the contacts they have welded together due to high current.  Sometimes they can be pried apart but not always.
The relay is in the back right corner of the relay box under the rear of the tank. It has 2 thick cables and a small push on connector.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

12Back to top Go down   help!!! engine doesn't start Empty the relay is fine on Tue Apr 15, 2014 5:44 am

emmanuelfiadjoe

emmanuelfiadjoe
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the relay is fine, the starter no longer turns when i connect the batt but the engine cranks but never starts, that's the problem now. i tested 1 of the plucks but its good. even this morning, the starter turns and engine cranks but never starts, I've check electrical connections but it still doesn't start. please help

    

13Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Tue Apr 15, 2014 6:17 am

Crazy Frog

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Check the connection of the EFI computer (computer seating on the top of the battery).


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help!!! engine doesn't start Frog15help!!! engine doesn't start Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

14Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Tue Apr 15, 2014 6:23 am

92KK 84WW Olaf

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Your post doesnt say what year your K is.

If its an early one there is a plastic 4 pin connector at the front of the fuel tank, left side. Just check it is a tight push fit so that the electrical connections are good. If it comes off very easily then it may not be making a good electrical connection. If there is a problem with his connection the engine will turn over but not fire because no fuel. You will hear the fuel pump relay click but the current doesn't reach the pump. You can open up the pins very slightly to improve the connection and fit.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska 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 105,200 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell Now 36,188  miles
    

15Back to top Go down   help!!! engine doesn't start Empty I'll check both on Tue Apr 15, 2014 6:57 am

emmanuelfiadjoe

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I'll check the connections under the tank to the pump and the EFI.
I must say that there's fuel in the hoses and rail: in fact I tried to loosen the clip of a hose on the rail & fuel gushed out.
nevertheless I'll check the connections as suggested


__________________________________________________
Model: K 100 RS 83 (0502,0503,0513)
Series: K589 (k100, RS, RT, LT)
Production Month/Year: 07/1984
Region: Europe
VIN: 0018945
    

16Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Tue Apr 15, 2014 8:13 am

92KK 84WW Olaf

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When you say gushed out was it under pressure? If the connection is erratic, which is possible, it will stay under pressure for a while. If you open the connection immediately after the engine has cut out you will still get a gravity flow.

I have had the same problem and the cause was that 4 way connector.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska 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 105,200 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell Now 36,188  miles
    

17Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Tue Apr 15, 2014 9:12 am

RicK G

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The pump should run for 1.5 seconds when you tap the start button does yours do that?


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

18Back to top Go down   help!!! engine doesn't start Empty ah! that 4-way connector on Tue Apr 15, 2014 10:58 am

emmanuelfiadjoe

emmanuelfiadjoe
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it's the 4-way connector to the pump on the tank, thanks a lot guys.
1 more thing, i wonder if my alternator works fine: when i started the bike, the batt light came on and remained on even though the engine was idling. when i raise the rev, it goes off but comes on as i allow it to fall back to idle?


__________________________________________________
Model: K 100 RS 83 (0502,0503,0513)
Series: K589 (k100, RS, RT, LT)
Production Month/Year: 07/1984
Region: Europe
VIN: 0018945
    

19Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Tue Apr 15, 2014 11:14 am

92KK 84WW Olaf

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You have to rev the engine to get the alternator/battery light to go out. But if its coming back on when you let the engine idle with lights off doesn't sound right. It will glow a bit at idle with lights on.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska 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 105,200 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell Now 36,188  miles
    

20Back to top Go down   help!!! engine doesn't start Empty definitely on Tue Apr 15, 2014 11:20 am

emmanuelfiadjoe

emmanuelfiadjoe
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so might it be the battery ain't charged or the alternator. nevertheless, after revving it a bit, the light stayed off at idle


__________________________________________________
Model: K 100 RS 83 (0502,0503,0513)
Series: K589 (k100, RS, RT, LT)
Production Month/Year: 07/1984
Region: Europe
VIN: 0018945
    

21Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Tue Apr 15, 2014 5:36 pm

92KK 84WW Olaf

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You should be ok, but just check out why the battery was down. It can happen just by leaving the bike parked up for a long time.

But if you ever find the battery low and the starter is struggling don't keep trying it. It actually draws a lot more current through the realy and welds it.

The forum is about sorting things too so glad you are sorted. Go and enjoy a few miles on the K to charge the battery.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska 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 105,200 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell Now 36,188  miles
    

22Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Tue Apr 15, 2014 8:02 pm

bushyintas

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You have checked the starter relay but try the load shed relay, smaller one towards the front of the electrical box under the tank,

you may have welded the contacts, I did the same as you not so long ago, starter relay OK, swapped out the load shed and all fine.


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Bushy

k100 RT 1988 #0095723
K100 RT 1984 into Custom Single seat.  #0024503
    

23Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Tue Apr 15, 2014 9:44 pm

RicK G

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If your alternator charge light is staying on past idle then the alternator probably needs new brushes.
You would probably be best off to get a complete new regulator/brush combination as the regulator tends to get a bit tired over time. It's easy to replace them just 2 screws on the alternator and you don't need to take the alternator off the bike even. Don't buy a genuine BMW item from a dealer get a genuine Bosch from almost any auto electrician or auto store for around $30


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

24Back to top Go down   help!!! engine doesn't start Empty hmmm, my country on Fri Apr 18, 2014 7:07 pm

emmanuelfiadjoe

emmanuelfiadjoe
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thanks. but my alternator light doesn't stay on past idle, it comes on once the engine falls back to idle.
another thing, its almost impossible to get parts in my country, Ghana-West Africa.


__________________________________________________
Model: K 100 RS 83 (0502,0503,0513)
Series: K589 (k100, RS, RT, LT)
Production Month/Year: 07/1984
Region: Europe
VIN: 0018945
    

25Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Fri Apr 18, 2014 7:15 pm

92KK 84WW Olaf

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Does the alternator light stay on bright at idle? At night mine will glow bright enough with lights on and when braking but it does keep the battery fully charged. Do you have a meter to check it? If you don't and if its keeping the battery charged then you should be ok.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska 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 105,200 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell Now 36,188  miles
    

26Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Fri Apr 18, 2014 9:01 pm

RicK G

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@emmanuelfiadjoe wrote:thanks. but my alternator light doesn't stay on past idle, it comes on once the engine falls back to idle.
another thing, its almost impossible to get parts in my country, Ghana-West Africa.
The idle speed is 900-1000rpm so it may be idling a bit slow or if that is OK then it usually is a sign the brushes are well worn so it may be worth ordering some new brushes now to save the wait. Usually I just change the regulator which includes the brushes but brushes can be bought separately and soldered in.
Motobins in UK have them http://www.motobins.co.uk/bmw-parts.php?model=K%20Series but most likely would be available from auto electricians as they are a common size.
Motobins in UK would probably be your best place to buy parts.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

27Back to top Go down   help!!! engine doesn't start Empty I have a meter on Sat Apr 19, 2014 5:54 am

emmanuelfiadjoe

emmanuelfiadjoe
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I have a meter, how do I check the alternator?

Rick, I think it idles a bit slower when i start it first but when the revs up about 900-1000, the alternator lights do go out.

is it normal that while i start the engine cold without revving it, it runs shortly and then goes off? this doesn't happen when its warm.


__________________________________________________
Model: K 100 RS 83 (0502,0503,0513)
Series: K589 (k100, RS, RT, LT)
Production Month/Year: 07/1984
Region: Europe
VIN: 0018945
    

28Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Sat Apr 19, 2014 6:14 am

RicK G

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The black or negative lead to the negative of the battery and red to positive of the battery. Start the bike and at idle the meter should read close to 12.6 volts increase the revs to 1500rpm and the voltage should go to at least 13volts and at 2000-2500 the reading should be close to 14 volts.  13.8 is acceptable and 14.2 is really good.

This is a good post to read it gives the amateur a better understanding of using electrical testing gear
https://www.k100-forum.com/t264-testing-electrical-systems-with-a-digital-multimeter?highlight=using+a+multimeter


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

29Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Sat Apr 19, 2014 7:48 am

emmanuelfiadjoe

emmanuelfiadjoe
Silver member
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thanks rick


__________________________________________________
Model: K 100 RS 83 (0502,0503,0513)
Series: K589 (k100, RS, RT, LT)
Production Month/Year: 07/1984
Region: Europe
VIN: 0018945
    

30Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Sat Apr 19, 2014 8:28 am

emmanuelfiadjoe

emmanuelfiadjoe
Silver member
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the link in that post takes you to a different page i think, where can i get the hard copy


__________________________________________________
Model: K 100 RS 83 (0502,0503,0513)
Series: K589 (k100, RS, RT, LT)
Production Month/Year: 07/1984
Region: Europe
VIN: 0018945
    

31Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Sat Apr 19, 2014 9:27 am

Inge K.

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It could be that Rick did have the following page in mind, but linked to the wrong one.

https://www.k100-forum.com/t725-using-a-test-meter-volts-amps-and-ohms


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

32Back to top Go down   help!!! engine doesn't start Empty Re: help!!! engine doesn't start on Sat Apr 19, 2014 9:33 am

RicK G

RicK G
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Thanks Inge I have never even looked at that as I am very conversant with meters etc


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

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