BMW K bikes (Bricks)

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1Back to top Go down   Helmet lock won't open Empty Helmet lock won't open on Sat Jun 06, 2015 4:00 am

Stickersman

Stickersman
Silver member
Silver member
On my 1986 K100RS the helmet lock won't open, the U hook just stays trapped in.

The key just doesn't turn right, it only stays Left or Upright position. I've tried by pushing in, wiggling, etc but nothing.
(The seat lock mechanism works fine though)

I've read the great post by Sidecar Paul (How-To link), dismounted the item and put grease but nothing changed.


__________________________________________________
1976 Moto Morini 3 1/2 GT, 1980 BMW R100T, 1986 BMW K100RS
http://motorbikestickers.eu/shop
    

2Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Tue Jun 09, 2015 2:30 pm

Stickersman

Stickersman
Silver member
Silver member
I've opened it, it seems okay, put some WD40, grease, etc but nothing to do about moving to position "2", it just won't turn.

Key in position "0":
Helmet lock won't open V5NCv3j

Key in position "1":
Helmet lock won't open R57zTbu


__________________________________________________
1976 Moto Morini 3 1/2 GT, 1980 BMW R100T, 1986 BMW K100RS
http://motorbikestickers.eu/shop
    

3Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Wed Jun 10, 2015 6:29 am

dutchie

dutchie
active member
active member
Hi, maybe a silly question but are you using the wright key, maybe in the past they put a other ignitionswitch in.


grtz.


__________________________________________________
K75RT 1996 Helmet lock won't open Klettern
K100RT 1986
    

4Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Wed Jun 10, 2015 6:37 am

Stickersman

Stickersman
Silver member
Silver member
@dutchie wrote:Hi, maybe a silly question but are you using the wright key, maybe in the past they put a other ignitionswitch in.

Yes I think I do because it turns on "1" position with no problem


__________________________________________________
1976 Moto Morini 3 1/2 GT, 1980 BMW R100T, 1986 BMW K100RS
http://motorbikestickers.eu/shop
    

5Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Wed Jun 10, 2015 5:27 pm

sidecar paul

sidecar paul
Life time member
Life time member
Hi,
I've been looking at your post for a couple of days now and I can't see what could be causing the problem.
It seems to be somewhere in the lock barrel, so I can only suggest pulling the barrel from it's housing and checking for any obstruction. Maybe that little index plunger isn't fitted correctly (but I can't remember where it actually fits Embarassed ).

Sorry I can't be more helpful.

Paul.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015) 
....No CARS never ever!
    

6Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Thu Jun 11, 2015 1:56 am

Holister

Holister
Life time member
Life time member
A couple of months back I serviced this lock. Neither seat nor helmet function worked. I got the seat lock to work but can't get the helmet hook to open at all. I have an accessories key which gets the seat locked but my ignition key doesn't work at all here.
I came to the same conclusion as dutchie that I may have the wrong key for this. I can't see any great wear or damage in the mechanism, it's now clean and lubed... it should work.


__________________________________________________

1989 K100RT     VIN  0097367 (naked)  
1996 K1100RS   VIN  0451808
  Helmet lock won't open Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

7Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Thu Jun 11, 2015 8:09 am

Gaz

Gaz
Life time member
Life time member
It might be worth having a look at this link  if you haven't messed with these locks before and remove the barrel then check with your ignition key if any of the "tangs/wafers" protrude. If any of them (other than the rear most retaining tang) are protruding at all it could be the reason for your trouble.

I redid my second hand seat lock using this method a few months ago. I've also got touring panniers and city panniers that I have modified the locks in this way so that the ignition key from either of my K bikes works in both sets of panniers.

Good luck.


__________________________________________________
Gaz
1990 K75 6427509; 1987 R80G/S PD 6292136; 2010 G650GS ZW13381; 95 K1100LT 0232224
    

8Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Thu Jun 11, 2015 8:27 am

Holister

Holister
Life time member
Life time member
That's very hand information Gaz. Thanks for the link.
Cheers


__________________________________________________

1989 K100RT     VIN  0097367 (naked)  
1996 K1100RS   VIN  0451808
  Helmet lock won't open Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

9Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Thu Jun 11, 2015 10:54 am

Stickersman

Stickersman
Silver member
Silver member
That's very interesting Gaz, thank you very much.

Now I'll have to take it down for the third time (and last, whatever it is)


__________________________________________________
1976 Moto Morini 3 1/2 GT, 1980 BMW R100T, 1986 BMW K100RS
http://motorbikestickers.eu/shop
    

10Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Thu Jun 11, 2015 4:55 pm

Stickersman

Stickersman
Silver member
Silver member
Just couldn't get the tumblr out its cylinder, "to depress the retainer tang and remove the lock core" as described on http://www.motobrick.com/index.php?topic=494.0


Helmet lock won't open Seatlock2


__________________________________________________
1976 Moto Morini 3 1/2 GT, 1980 BMW R100T, 1986 BMW K100RS
http://motorbikestickers.eu/shop
    

11Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Thu Jun 11, 2015 8:43 pm

Gaz

Gaz
Life time member
Life time member
The lock barrel in these seat locks can only be removed when the mechanism is in its centre position.

I faced this issue when doing mine. See here for how I got around it.

Patience was the key.  LaughingLaughing


__________________________________________________
Gaz
1990 K75 6427509; 1987 R80G/S PD 6292136; 2010 G650GS ZW13381; 95 K1100LT 0232224
    

12Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Fri Jun 12, 2015 2:48 am

Stickersman

Stickersman
Silver member
Silver member
Thank you Gaz, I read that, I share the feeling (and kind of swearing too)

I don't have a proper lock pick though, I am not sure I've understood what exactly is the right movement to apply as I see no tiny hole but just a flat little piece of metal (brass?)
Shoud I try to enter with my pointy whatever between that and the cylinder wall? (where arrrow points in pic above)


__________________________________________________
1976 Moto Morini 3 1/2 GT, 1980 BMW R100T, 1986 BMW K100RS
http://motorbikestickers.eu/shop
    

13Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Fri Jun 12, 2015 3:07 am

rosskko

rosskko
VIP
VIP
Not sure if this thread has been shown from Frankenduck.

HERE

Should be all you need to understand the process.

Good luck


__________________________________________________
1986 K100RT VIN 0093801K100RT with summer fairing for a northern visitor

Basic/2 6308802K100CJ  05/1988

K1100RS 0194321
    

14Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Fri Jun 12, 2015 7:50 am

Gaz

Gaz
Life time member
Life time member
The retaining tang (the little flat piece of brass) needs to be pushed down in a radial direction, that is in toward the centre of the circle that is the barrel with your pointy tool.
Once it is down flush with the circumference of the barrel you should be able to withdraw the barrel out of the housing. Maybe having a key in the lock will give you something to grip onto while trying to withdraw the barrel.

Cheers


__________________________________________________
Gaz
1990 K75 6427509; 1987 R80G/S PD 6292136; 2010 G650GS ZW13381; 95 K1100LT 0232224
    

15Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Fri Jun 12, 2015 9:44 am

Stickersman

Stickersman
Silver member
Silver member
Excellent description fior the movement Gaz!

I just popped out in an eye blink with a cutter blade (strongly recommended) but when I had the trumbler in my hand all the flags went down by just holding it and also that tiny pin popped out, there is a spring where I suppose it should stay.

All flags down, unknown pin, key wont turn anywhere, big trouble now  Mad
UPDATE: actually the retainer tang was not down, it was just broken and the tiny piece of metal is now apart

Helmet lock won't open YPg02B1


__________________________________________________
1976 Moto Morini 3 1/2 GT, 1980 BMW R100T, 1986 BMW K100RS
http://motorbikestickers.eu/shop
    

16Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Fri Jun 12, 2015 10:35 am

Stickersman

Stickersman
Silver member
Silver member
Ok I let it go, I put a little blade that stops the tumbler when pulling the key, the primary flag has gone into pieces so there'd be no way to stop it. Kind of a ghetto fix but better than having it locking your seat forever.

In case it's possible to adjust a second hand tumbler to my keys I'll do the substition.


__________________________________________________
1976 Moto Morini 3 1/2 GT, 1980 BMW R100T, 1986 BMW K100RS
http://motorbikestickers.eu/shop
    

17Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Fri Jun 12, 2015 7:06 pm

Gaz

Gaz
Life time member
Life time member
Glad you have got the barrel out. Good luck with finding the small spring for the indexing pin.
I have seen an internet description, maybe Utube, of changing the wafers/tumblers and am sure they can be purchased and changed out so don't give up yet.

More info on these UTube videos

Video 1

Video 2

If I can find where the wafers are available I'll post.

Cheers.


__________________________________________________
Gaz
1990 K75 6427509; 1987 R80G/S PD 6292136; 2010 G650GS ZW13381; 95 K1100LT 0232224
    

18Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Tue Aug 11, 2015 3:27 am

Stickersman

Stickersman
Silver member
Silver member
I've got myself a second hand lock but it's in position 1 (left) and no key is available.

Is there any way to get the lock cylinder off to start the "rekeying" ?

I've pushed the tang in but still wont pop ...


__________________________________________________
1976 Moto Morini 3 1/2 GT, 1980 BMW R100T, 1986 BMW K100RS
http://motorbikestickers.eu/shop
    

19Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Tue Aug 11, 2015 4:22 am

duck

duck
Life time member
Life time member
JMHO but the helmet lock on K bikes is a pretty worthless design. I usually just take my helmet with with me but if I need to lock it up I use a lock like this:

Helmet lock won't open K2-_63129964-3f29-42e6-8e8f-23d9b3063859.v1


__________________________________________________
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 (x2)
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
    

20Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Tue Aug 11, 2015 4:28 am

Stickersman

Stickersman
Silver member
Silver member
@duck wrote:JMHO but the helmet lock on K bikes is a pretty worthless design. I usually just take my helmet with with me but if I need to lock it up I use a lock like this:

Totally agree Duck, I'm going to use a cable lock too but it's just that all-working-as-first-day bug that won't let me go...


__________________________________________________
1976 Moto Morini 3 1/2 GT, 1980 BMW R100T, 1986 BMW K100RS
http://motorbikestickers.eu/shop
    

21Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Tue Aug 11, 2015 4:41 am

duck

duck
Life time member
Life time member
sobonatovada wrote:
@duck wrote:JMHO but the helmet lock on K bikes is a pretty worthless design. I usually just take my helmet with with me but if I need to lock it up I use a lock like this:

Totally agree Duck, I'm going to use a cable lock too but it's just that all-working-as-first-day bug that won't let me go...

Yeah, I understand.


__________________________________________________
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 (x2)
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
    

22Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Tue Aug 11, 2015 3:37 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Maybe it's because I mostly ride in rural areas, but I just hang my helmet on the ABS bleeder.  No problems so far.


__________________________________________________
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
    

23Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Thu Aug 13, 2015 11:33 pm

Gaz

Gaz
Life time member
Life time member
When I managed to get my seat lock to turn from the left (anticlockwise) position to the centre position so I could remove the barrel I did it using a miniature hacksaw blade ground down to something like this
Helmet lock won't open Lockpi10
I inserted this tool into the lock with the flat side facing the way the flat side of the BMW key would be and while applying pressure in a clockwise direction I dragged the tool out of the slot (I've read that locksmiths call this raking). Repeat, repeat, repeat ...................., wriggle the tool, swear, get another beer,  then continue. Mine only took several hours.

I'm sure you get the idea. Good luck.


__________________________________________________
Gaz
1990 K75 6427509; 1987 R80G/S PD 6292136; 2010 G650GS ZW13381; 95 K1100LT 0232224
    

24Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Wed Aug 26, 2015 9:30 am

oldbikemart

oldbikemart
active member
active member
I had this problem, and a squirt of ACF50 did the trick, and the barrel popped out! hope it works for others too.
Regards, Martin

    

25Back to top Go down   Helmet lock won't open Empty Re: Helmet lock won't open on Wed Aug 26, 2015 9:31 am

oldbikemart

oldbikemart
active member
active member
I had this problem, and a squirt of ACF50 did the trick, and the barrel popped out! hope it works for others too.
Regards, Martin

    

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