'91 K100 RS Ignition switch removal - K-Bikes.com - Excellence in Motion
 
LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old Sep 28th, 2010, 9:51 am Thread Starter
Noob
 
Join Date: Sep 2010
Location: Tallahassee, Fl, USA
Posts: 7
'91 K100 RS Ignition switch removal

Hello all, new here. Picked up a '91 K100 RS a couple of weeks ago, 81,000 miles. Trying to rectify a balky ignition switch. Ordered a new one (be here in about a week), can't get the old one out. Clymer manual is useless. Old one was duct taped together, would cut out when hitting a bump. Tried prying it out from the bottom, now have a collection of little plastic and copper pieces. Some plastic still up in the hole. There is mention of a brass screw on another site I searched, all I see is what looks like what could be the remains of a broken off screw on the right side. Anyone know how the cylinder part comes out?
Thanks.

'93 R100 RT
'91 K100 RS
Lonzo is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old Sep 28th, 2010, 9:56 am
Senior Member
 
Join Date: May 2010
Location: DC, ,
Posts: 157
I used this guide which deals with cleaning but should serve you as well.

http://www.ibmwr.org/ktech/clean-ignition-switch.shtml

http://www.ibmwr.org/ktech/ign-switch-disassemble.shtml

It comes out without too much trouble you have to use two small flatheads on either side to press in the clips and it pulls right out.

------------------------------------------------------------------------------------
Current: 1985 K100RT Stripped.
See it here DC to Gaspe

Past: 1985 K100
See it here on my trip from DC to Panama
DC to Panama City
lukeman is offline  
post #3 of 9 (permalink) Old Sep 28th, 2010, 10:47 am
PsyKotic Waterfowl
 
Join Date: Aug 2006
Location: Seattle, WA,
Posts: 1,328
Quote:
Originally Posted by lukeman
I used this guide which deals with cleaning but should serve you as well.

http://www.ibmwr.org/ktech/clean-ignition-switch.shtml

http://www.ibmwr.org/ktech/ign-switch-disassemble.shtml

It comes out without too much trouble you have to use two small flatheads on either side to press in the clips and it pulls right out.
Those are for a 2 valve K and do not apply. A 91 K100RS4V has the ignition built into the upper fork tree. There are two bolts that hold the ignition switch in. On some bikes they are "security" bolts that need to be drilled out.
FlyingDuck is offline  
Sponsored Links
Advertisement
 
post #4 of 9 (permalink) Old Sep 28th, 2010, 1:07 pm Thread Starter
Noob
 
Join Date: Sep 2010
Location: Tallahassee, Fl, USA
Posts: 7
Thanks, that makes sense. I guess they can be replaced with regular stainless nuts and bolts. I saw those things in there, wasn't sure enough to drill them out.

'93 R100 RT
'91 K100 RS
Lonzo is offline  
post #5 of 9 (permalink) Old Sep 28th, 2010, 3:28 pm
Senior Member
 
Join Date: May 2010
Location: DC, ,
Posts: 157
Ahh, good call duck. Yeah it was way too easy to pop out the ignition for my liking...

------------------------------------------------------------------------------------
Current: 1985 K100RT Stripped.
See it here DC to Gaspe

Past: 1985 K100
See it here on my trip from DC to Panama
DC to Panama City
lukeman is offline  
post #6 of 9 (permalink) Old Sep 28th, 2010, 8:04 pm Thread Starter
Noob
 
Join Date: Sep 2010
Location: Tallahassee, Fl, USA
Posts: 7
Success! Thanks for the instruction! Couple of tips for anyone else-

Make sure the security screws are drilled absolutely dead center. Start with a tiny pilot hole.

The switch is off-center to the right, turn the bars full right to clear the fairing bracket.

Remove the top right bolt that holds the front fairing bracket to the frame head. If not, the bolt head will not allow the switch to pass.

Now just a matter of whether or not the replacement shows up in time for an upcoming road trip.

'93 R100 RT
'91 K100 RS
Lonzo is offline  
post #7 of 9 (permalink) Old Sep 29th, 2010, 8:42 am Thread Starter
Noob
 
Join Date: Sep 2010
Location: Tallahassee, Fl, USA
Posts: 7
Studied the assembly last night, discovered the ignition lock has a built in fork lock. If the key is turned left past the off position, a cylinder moves out and engages a hole in the frame head. Mine, however, won't turn at all. Had the cylinder out and completely apart, cleaned, lubed, lock still only goes to off or on.

'93 R100 RT
'91 K100 RS
Lonzo is offline  
post #8 of 9 (permalink) Old Sep 29th, 2010, 10:03 am
PsyKotic Waterfowl
 
Join Date: Aug 2006
Location: Seattle, WA,
Posts: 1,328
Turn the handlebars almost all of the way to the right to engage the steering lock. Sometimes they're rather sticky if they haven't been used much,
FlyingDuck is offline  
post #9 of 9 (permalink) Old Sep 29th, 2010, 10:55 am Thread Starter
Noob
 
Join Date: Sep 2010
Location: Tallahassee, Fl, USA
Posts: 7
Thanks for the reply. I had the lock assembly out and in my hand, the key only has two positions. Completely dissassembled, cleaned and lubed it. Didn't see anything broken. The key cylinder can only be removed with the key in the "ignition on" position, can only be reassembled with key towards the steering lock position. After turning to "off" or "on", absolutely will not turn back to steering lock. I'm sure its either a fault with the key cylinder itself, or the key is too short to engage the last pin (the one that holds the cylinder in the body of the assembly). Even if I am able to repair it, will probably never use it. Hate for the thing to fail in the locked position.

EDIT: Had the local BMW tech look at my lock. The key is worn down so that the pins (little flat blades, actually) don't go down flush with the cylinder. Not a problem where the barrel is worn to match, between "off" and "on", but the seldom used fork lock position groove is sharp-edged, and would catch. Filed down the pins flush, all is good.

'93 R100 RT
'91 K100 RS

Last edited by Lonzo; Sep 30th, 2010 at 8:24 am. Reason: Problem solved
Lonzo is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the K-Bikes.com - Excellence in Motion forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Front brake light switch vicgreg Other K-Bikes Discussion 6 Aug 13th, 2009 2:58 pm
2004 K1200GT Ignition Switch replacement pawprint2104 K1200RS/GT (Classic) 24 Jul 3rd, 2009 4:12 am
Removing K100 Ignition Switch? No go! paulstamser Other K-Bikes Discussion 1 Aug 27th, 2008 3:12 pm
Left handlebar switch removal and heated grip plug keszr1 K1200RS/GT (Classic) 2 Jul 18th, 2008 12:16 am
85 K100 Ignition Blues gmanzk100 Technical, Repair and Maintenance 7 Nov 26th, 2006 6:45 am

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome