Box of Rocks? - - Excellence in Motion
LinkBack Thread Tools Display Modes
post #1 of 13 (permalink) Old Aug 22nd, 2009, 2:57 pm Thread Starter
Join Date: Aug 2009
Posts: 3
Box of Rocks?

Hello, I will probably purchase a 99 k1200rs this weekend but I have a question involving the clutch noise. When disengaged it sounds like something is wrong with it. The owner says in is the "Box of Rocks" that is common for this bike. Is it normal and do I have anything to worry about?

Thanks, Saloman
Saloman1 is offline  
Sponsored Links
post #2 of 13 (permalink) Old Aug 22nd, 2009, 3:41 pm
allikanbe1's Avatar
Join Date: Nov 2004
Location: Yorktown, VA, USA
Posts: 969
Sounds like the box of rocks that they all have/had. My 04RS had it. Bought the KS to get rid of it.

07 BMW K1200 S (cosmic blue/titan silver)
allikanbe1 is offline  
post #3 of 13 (permalink) Old Aug 22nd, 2009, 4:20 pm
Papilio's Avatar
Join Date: Jun 2003
Location: Melbourne, Victoria, Australia
Posts: 1,163

Do a run down to Nogales and back. Bet it is nice and quiet when you next listen, if not. Problem.
Papilio is offline  
Sponsored Links
post #4 of 13 (permalink) Old Aug 22nd, 2009, 7:14 pm
Sooper Dooper Moderator
chuckwilmot's Avatar
Join Date: Jun 2003
Location: Anaheim, CA, USA
Posts: 1,025

I had an 03 K12RS, and they were known for the "box 'o rocks" sound. Difficult to know if your sound is what everybody else thought of as normal, but for sure, all of them had a rattling noise that could be mildly annoying, but was perfectly normal.
chuckwilmot is offline  
post #5 of 13 (permalink) Old Aug 22nd, 2009, 8:26 pm
no power in the 'verse can stop me
shook sez's Avatar
Join Date: Oct 2005
Location: n.e.ohia, , usa
Posts: 1,126
If I only had a dollar for every time this question has come up..............

tim-----still on the right side of the frostline

you can't stop the signal
shook sez is offline  
post #6 of 13 (permalink) Old Aug 24th, 2009, 3:52 pm
Action_Mango's Avatar
Join Date: Mar 2009
Location: Kirkland, WA, United States
Posts: 97
Perfectly normal for bikes with dry clutches. Many BMWs and Ducatis are dry clutch.

Most bikes have wet clutches, which I guess absorb the sound.
Action_Mango is offline  
post #7 of 13 (permalink) Old Aug 29th, 2009, 8:15 pm
Join Date: Dec 2003
Location: Spotsylvania, VA, USA
Posts: 342

It is supposed to do that. If not take it in a get it fixed s o it makes that sound.
Wildbeast is offline  
post #8 of 13 (permalink) Old Aug 30th, 2009, 10:04 pm
The Fllash's Avatar
Join Date: Jan 2005
Location: Las Vegas, Nevada, USA
Posts: 513
When I bought my first new 2002 K1200RS I was very embarrassed when at a red light with my box of rocks noise, I had a BMW! WTF.

I traded it for a 2004 K1200RS (not because of the noise) and I never have that noise on this bike, now having 45,000 miles and I put a new clutch in at 36,000, too many wheelies.
After being inside the clutch Assy I donít see why it would make that noise and I donít think it is the noise maker. I believe the noise is caused by the alternator drive.

I know when you pull in the clutch lever a little bit, that causes the box of rocks noise to stop, so you think it is the clutch making the noise.
But when you pull the clutch lever it pushed the clutch release rod against the clutch spring fingers that pushes on the clutch Assy that moves the crankshaft. That changes the drive driven gear position for the alternator drive. The box of rocks noise stops.

I maybe wrong on this.
I thought I was wrong once before, but I was mistaken.
The Fllash is offline  
post #9 of 13 (permalink) Old Aug 31st, 2009, 3:35 am
flyingkiwi's Avatar
Join Date: Dec 2008
Location: Port Macquarie, NSW, Australia
Posts: 381
Jeez Bazra, I just love your way with words.... your last paragraph made me laugh!!! My 02KRS hardly rattles at all with 77000km but then I have never attempted a wheelie let alone achieved one. With the clutch disengaged there is a sound that could be confused with the tupperware vibrating but thats all. Could the noise be associated with clutch or engine abuse over time? Then again I could be mistaken....

2002 K1200RS Owned from new. Pacific Blue, Ohlins. 183,000kmís
2016 K1300R Black, Remus hexacone. 6000kmís
The family history
1951 AJS 500 single - my Dads
1916 Triumph Type H, Western front, France WW1 - my Grandads
flyingkiwi is offline  
post #10 of 13 (permalink) Old Aug 31st, 2009, 8:45 am
Join Date: Mar 2004
Location: , , UK
Posts: 3,750
I think the noise is due to the lack of a flywheel and softening of the spring tension that's supposed to keep the intermediate shaft gears in tight mesh, there's also backlash through the tranni gears which are going to wobble back and forth and clunk about.. Some of it comes from the clutch push rod too.

But once you have positive drive through the rear wheel (The Flywheel! ), all is usually quiet.

Never pay again for live sex! | Hot girls doing naughty stuff for free! | Chat for free!
voxmagna is offline  

Quick Reply

Register Now

In order to be able to post messages on the - 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:
Please enter a password for your user account. Note that passwords are case-sensitive.


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

Email Address:


Similar Threads
Thread Thread Starter Forum Replies Last Post
Morpheus Rocks an R for No Real Reason PrivateAxis K12/1300R/R-Sport 9 May 22nd, 2009 4:33 pm
Healing and wheeling at Red Rocks Rendezvous 2008 rhhall Ride Tales 8 Sep 8th, 2008 8:51 am
My first 1,000 mile day-this bike rocks retroboy K12/1300GT (Next Gen) 8 Jun 4th, 2007 1:04 pm
Seneca Rocks, WV ride advice wanted Captain K12R Bike Talk 6 Oct 5th, 2006 5:47 am
GT with 7.0 Rocks! Zoom Zoom larrykay K12/1300GT (Next Gen) 3 Sep 15th, 2006 7:33 pm

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