BMW K bikes (Bricks)


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1Back to top Go down   Mistakes so far Empty Mistakes so far Tue Aug 14, 2018 11:03 am

Denovision

Denovision
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Started refurbisuing the bike and began by trying to fix the seized front brake calipers by renewing seals etc(she has been stood inside for eight years)...after much "non improvement" it eventuallyturned out to be the brake lever jamming NOT the calipers. (two days wasted) Then I turned my attention to the REAR leaking brake caliper...loads of visible oil on the floor. Same process of cleaning out and replacing seals renewing tubing and oil header tanks etc...turned out to be a leak from the rear hub. (another two days wasted) All this time the engine wasEngine was starting and running fine on jump leads. Bought a new battery and for good measure repaced the Earth cable. Proud of myself till I realised I'd momentarily had the jump leads on in reverse order. Now she starts but the ignition light stays on. It will probably turn out to be something like another Earh somewhere but definitely NOT the voltage regulator which is where I'm starting today. I thought it might just be a bit easier than this!Oh yes...and now the radiator has started to leak...

    

2Back to top Go down   Mistakes so far Empty Re: Mistakes so far Tue Aug 14, 2018 12:58 pm

92KK 84WW Olaf

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What happens if you rev it? If you start and just tick over the ignition light will stay on. Give it a blip to 2000rpm and it should go out.

If it doesn't work the fact that you have the bike running means all is good but that possibly the regulator is kaput/fried. You can unscrew that from the back of the alternator, its an easy access. How are you sure that's not the problem?


__________________________________________________
1992 K100LT 0193214 Bertha 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 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

3Back to top Go down   Mistakes so far Empty Re: Mistakes so far Tue Aug 14, 2018 2:56 pm

Dai

Dai
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Radiator = Radweld. Got to be the cheapest first try...


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

4Back to top Go down   Mistakes so far Empty Mistakes so far Wed Aug 15, 2018 2:58 pm

Denovision

Denovision
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How am I sure that it wont be the regulator....really its just because NOTHING I diagnose is what I thought it was going to be! However, my spirit is higher today so tomorrow I try to fix the alternator by first checking the output with my voltmeter. (i'm worried that when I turn on the ignition the lights flash on for a very brief time...is that normal?
The radiator I tried fixing since it seemed it was just a single cell leaking. I took out the core and then tried some plastic weld on it . That worked fine but then a new leak appeared. I fixed that too but then another one and then another. Finally got a second hand one for £40 from e-bay.and its ok. Pressure tested it by making a tester from an old cycle tyre...worked a treat.Im finding it hard as a newbie to get around the site so that I can read EVERYTHING about the alternator before asking more junior questions....If I have to replace it can it come out without removing the engine. I started this as a quick summer project but its going to be a lot longer than that I think! Is there a way of getting friendly with K bikers from my country (UK)?? I think I might have found a company that makes m/c screens and am hoping they will have an old pattern for my "Sprint" after-market fairing. Cross fingers!

    

5Back to top Go down   Mistakes so far Empty Re: Mistakes so far Wed Aug 15, 2018 3:53 pm

92KK 84WW Olaf

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The alternator is very easy to remove especially if no ABS on board but I get mine off either way.

You do need the Clymer manual and if you haven't got one I would recommend it.

Basically you will see the plastic cover on the right hand side with the slots in it and you can see the alternator through the slots. You do need the battery etc out of the way but if you have a long allen key you can get it out without removing the starter. There are three bolts, you can only see two but the third is in between the starter and the alternator. A long allen key will reach in to it because the three bolts are equally spaced. You may find the brushes are kaput but I would be doubly sure to check everything else first.

All lights come on when you turn on the ignition, that's normal. Are there any that don't?

But go back to the question on the charge light which isn't answered, it does NOT go out when you start the engine until you rev it. If you start the engine and just run it you will drain the battery.


__________________________________________________
1992 K100LT 0193214 Bertha 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 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

6Back to top Go down   Mistakes so far Empty Re: Mistakes so far Wed Aug 15, 2018 5:26 pm

Denovision

Denovision
active member
active member
Sorry I didn't directly answer the question. No...the light doesnt go off when I rev the engine. I was probably so pleased it ran at all that I didn't pay it enough attention....and I WAS jump starting it from my car. Only noticed when I tried to let her run for a bit to clear the oil in the pistons after fitting the new battery..It may be just my perception but I think TWO things happen
1) As the ignition switch goes past its first detente the front and rear lights flash on and then off again very quickly(like a lightning strike)
2) It feels to me like the starter motor kicks in too ferosiously
I know that could just be the new battery but it sounds wrong to me.
Really appreciate your time on this and I'll let you know tomorrow what the voltmeter says.
Its night time here so enjoy your evening...mine's over!

    

7Back to top Go down   Mistakes so far Empty Re: Mistakes so far Wed Aug 15, 2018 6:58 pm

92KK 84WW Olaf

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Is there any possibility the red warning light in the clocks is an led? Maybe also check the alternator wires are correctly reconnected.

I had a few Ks and I don't think any of them flash the front and rear lights when you hit the ignition. The parking light function is the furthest setting back counter clockwise on mine. Then clockwise for ignition functions.

K1100 is different as it incorporates steering lock but the parking function is still fully counter clockwise.


__________________________________________________
1992 K100LT 0193214 Bertha 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 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

8Back to top Go down   Mistakes so far Empty Re: Mistakes so far Wed Aug 15, 2018 8:15 pm

duck

duck
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Jumping with the wrong polarity can kill you regulator/alternator.

(Did it once to my MG in college when I had a wicked hangover. Embarassed Had to put an extra car battery in the passenger seat with jumper cables attached to make it home without a functioning alternator.)


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

9Back to top Go down   Mistakes so far Empty Re: Mistakes so far Wed Aug 15, 2018 10:05 pm

92KK 84WW Olaf

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duck wrote:Jumping with the wrong polarity can kill you regulator/alternator.

(Did it once to my MG in college when I had a wicked hangover.  Embarassed  Had to put an extra car battery in the passenger seat with jumper cables attached to make it home without a functioning alternator.)

Back to post one and wrong polarity. Regulator can be removed without removing he alternator, it screws into the back of it. Easy fix.


__________________________________________________
1992 K100LT 0193214 Bertha 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 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

10Back to top Go down   Mistakes so far Empty Re: Mistakes so far Thu Aug 16, 2018 7:20 am

charlie99

charlie99
VIP
VIP
Mistakes so far 112350


__________________________________________________
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 )
    

11Back to top Go down   Mistakes so far Empty Re: Mistakes so far Thu Aug 16, 2018 4:24 pm

Stumpy

Stumpy
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Silver member
You say the sidelights flash as you switch on. Switch to that position and leave it there, the parking lights will switch on.

    

12Back to top Go down   Mistakes so far Empty Re: Mistakes so far Thu Aug 16, 2018 4:46 pm

92KK 84WW Olaf

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Stumpy wrote:You say the sidelights flash as you switch on. Switch to that position and leave it there, the parking lights will switch on
I rechecked my 84 K100RT...yep from off it goes one stage clockwise t power up sidelights and you can remove the key at that position....all good.


__________________________________________________
1992 K100LT 0193214 Bertha 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 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 48,061 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 61,190 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

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