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1Back to top Go down   85 K100RS Starter Motor Problems Empty 85 K100RS Starter Motor Problems on Sun Dec 13, 2015 5:22 pm

Clcinjax

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Bike had been sitting for about 5 weeks.  Charged battery and attempted to start.  Starter motor whines but does not turn over.  Removed starter motor and hooked to a battery and turns over just like it should.  Reinstalled starter and whining but not turning over.  Rocked the bike in 4th gear as  I read somewhere the sprag clutch stick as this sometimes fixes the problem.  Again, no change.  

Any thoughts on what to do next would be appreciated.

    

2Back to top Go down   85 K100RS Starter Motor Problems Empty Re: 85 K100RS Starter Motor Problems on Sun Dec 13, 2015 8:52 pm

RicK G

RicK G
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It quite likely is the sprag clutch. Remove the starter and with a long screwdriver try to turn the gear that meshes with the starter gear, it should turn one direction and not the other. That will prove if it is indeed the sprag clutch.
Have you had the starter apart prior to this as we have seen quite a few put together so they spin the wrong way, very easy to do.
Some of the guys here have use diesel oil (not fuel) in the engine to get the gunk out but you will need to push start it which is not easy but once started with the deisel oil it often comes good fairly quickly.



Last edited by RicK G on Sun Dec 13, 2015 10:44 pm; edited 1 time in total (Reason for editing : phat phingers)


__________________________________________________
"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 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

3Back to top Go down   85 K100RS Starter Motor Problems Empty Re: 85 K100RS Starter Motor Problems on Sun Dec 13, 2015 10:01 pm

92KK 84WW Olaf

92KK 84WW Olaf
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For what its worth when I had mine apart I found that it went back together really easy, then checked it and found it was the wrong way. To get it back together the correct way is little more tricky. It felt like it wanted to go back together the wrong way.

If in doubt put some marks on it before you open it. Then reassemble it the opposite way and pop it back in. If that solves it then you are sorted. But a common thing is to mark it before disassembling, then go to town cleaning the outside and when it comes to reassembly the marks are cleaned off. So when you know its right do use a permanent means of marking like some scrapes of a sharp screwdriver on the casing where the end and casing meet. Or a dab of paint.


__________________________________________________
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 100,380 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell No 33,600 miles
    

4Back to top Go down   85 K100RS Starter Motor Problems Empty Re: 85 K100RS Starter Motor Problems on Sun Dec 13, 2015 10:08 pm

brickrider

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'But a common thing is to mark it before disassembling, then go to town cleaning the outside and when it comes to reassembly the marks are cleaned off.'  lol!
That's precisely what I did.  Fortunately my bud came to the rescue and I managed to put it right with his help.  When it comes to marking the case, a scribe mark is the way to go!


__________________________________________________
Brickrider
1985 K100RS; brick red, of course!
    

5Back to top Go down   85 K100RS Starter Motor Problems Empty Re: 85 K100RS Starter Motor Problems on Sun Dec 13, 2015 11:17 pm

Clcinjax

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Thanks for the responses.  i have not hard the starter apart.  I checked the sprag clutch and it does turn one direction and not the other.  Any chance it is the starter relay?

    

6Back to top Go down   85 K100RS Starter Motor Problems Empty Re: 85 K100RS Starter Motor Problems on Sun Dec 13, 2015 11:56 pm

RicK G

RicK G
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If you can hear the starter spinning then it's highly unlikely the relay is cactus.
Try to push start it and then refill with some oil for deisel cars and run it for a few miles and see if there is a change, if that fails to get action then it may be that the sprag clutch needs manual cleening and the gearbox and the intermediate housing needs to come off for 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 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

7Back to top Go down   85 K100RS Starter Motor Problems Empty Re: 85 K100RS Starter Motor Problems on Mon Dec 14, 2015 5:26 am

92KK 84WW Olaf

92KK 84WW Olaf
Life time member
Life time member
@brickrider wrote:'But a common thing is to mark it before disassembling, then go to town cleaning the outside and when it comes to reassembly the marks are cleaned off.'  lol!
That's precisely what I did.  Fortunately my bud came to the rescue and I managed to put it right with his help.  When it comes to marking the case, a scribe mark is the way to go!

That's why its important to have a reliable supply of 85 K100RS Starter Motor Problems 905546712 for these moments.....


__________________________________________________
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 100,380 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell No 33,600 miles
    

8Back to top Go down   85 K100RS Starter Motor Problems Empty Re: 85 K100RS Starter Motor Problems on Mon Dec 14, 2015 7:43 pm

Clcinjax

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Thanks.  Will push start and see what happens.

    

9Back to top Go down   85 K100RS Starter Motor Problems Empty Re: 85 K100RS Starter Motor Problems on Tue Dec 15, 2015 10:24 pm

Curley

Curley
Silver member
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I had a similar problem on my RS 16v and 75RT. Disassembled the starter and cleaned it our.
Has been working perfectly since. Its a quick and easy job!


__________________________________________________
85 K100RS Starter Motor Problems Ir-log1185 K100RS Starter Motor Problems Ir-log1185 K100RS Starter Motor Problems Ir-log1185 K100RS Starter Motor Problems Ir-log1185 K100RS Starter Motor Problems Ir-log11

cheers  White K100RS 1991  cheers Red K1100LT SE 1995 cheers Green K75RT 1995 cheers
    

10Back to top Go down   85 K100RS Starter Motor Problems Empty Re: 85 K100RS Starter Motor Problems on Tue Dec 15, 2015 11:24 pm

Point-Seven-five

Point-Seven-five
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Was having sprag problems so I ran 15W 40 synthetic Shell Rotella diesel engine oil in my 16v K100 for about 3000 miles this summer.  Not one starter problem since putting it in.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

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