Exhaust Stud Thread Size - K-Bikes.com - Excellence in Motion
 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old Jun 11th, 2019, 6:51 pm Thread Starter
Noob
 
bcartk12s's Avatar
 
Join Date: Jun 2019
Posts: 12
I lost a nut on one of the downpipes and need to replace it. I'm having trouble finding the right size and thread pitch. Does anybody know the size and pitch for the exhaust studs? Seems like it should be M7. The 1.00 pitch threads on, but won't torque down. Thanks.

Chambersburg, PA
2008 BMW K1200S

Last edited by bcartk12s; Jun 11th, 2019 at 7:35 pm.
bcartk12s is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old Jun 12th, 2019, 4:43 pm
Member
 
Beech's Avatar
 
Join Date: Nov 2003
Location: , ,
Posts: 70
That is because it is M8. Also it is originally a copper nut but now they are copper plated self locking nuts.
Stud:07 12 9 908 137 STUD BOLT - M8X55
Nut: 11 62 1 744 323 HEX NUT - M8 SW12
This information is kindly provided by MAX bmw and their parts fiche is:
BMW Motorcycle Parts | Catalog Parts Online | MAX BMW Motorcycles
Torque is 16 ft./lbs.

Mount Vernon, WA.
tire guy, I'll mount your tires.
Beech is offline  
post #3 of 4 (permalink) Old Jun 13th, 2019, 1:00 pm Thread Starter
Noob
 
bcartk12s's Avatar
 
Join Date: Jun 2019
Posts: 12
Quote:
Originally Posted by Beech View Post
That is because it is M8. Also it is originally a copper nut but now they are copper plated self locking nuts.
Stud:07 12 9 908 137 STUD BOLT - M8X55
Nut: 11 62 1 744 323 HEX NUT - M8 SW12
This information is kindly provided by MAX bmw and their parts fiche is:
BMW Motorcycle Parts | Catalog Parts Online | MAX BMW Motorcycles
Torque is 16 ft./lbs.
Huh...that info must be for a different bike. Maybe the K1200RS? For the K1200S, it's definitely an M7. That is confirmed by following the MAX BMW link you provided. I bought a metric pitch gauge this morning and confirmed the thread pitch is 1.00. The hardware I bought must have been mislabeled. Thanks for the link, though. The last thing I want to do is mess up the threads on those studs!

Chambersburg, PA
2008 BMW K1200S
bcartk12s is offline  
Sponsored Links
Advertisement
 
post #4 of 4 (permalink) Old Jun 18th, 2019, 12:04 pm
Member
 
Beech's Avatar
 
Join Date: Nov 2003
Location: , ,
Posts: 70
You are correct. My mistake I was thinking RS.

Mount Vernon, WA.
tire guy, I'll mount your tires.
Beech 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



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