Clutch Springs - Kawasaki KLR 650 Forum
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 18 Old 10-11-2017, 10:00 PM Thread Starter
1st Gear
 
UKbri's Avatar
 
Join Date: Aug 2013
Location: The Black Hills
Posts: 49
Clutch Springs

Any recommendations for a new set of uprated clutch springs for a 2012? I got the plates out and they are in good condition so just want to change the springs. The Eagle Mike ones only seem to go to early 2011 and I've heard the EBC heavy dutys don't work well?
UKbri is offline  
Sponsored Links
Advertisement
 
post #2 of 18 Old 10-11-2017, 11:57 PM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,924
Garage
Hmm, 2012 is a short stack clutch, isn't it?

The clutch on my 2009 is a KLR600, which is very similar to the new short stack. When I wanted springs (the stockers were at the minimum OAL) I went and looked at what the Ninja 600R guys were using (almost an identical clutch, with basically the same stack). The preferred set-up there was a Barnett 501-50-05055 set of springs for the 650R.

The new KLR short stack clutch is somewhat common with the 650R, as they use the same hub.

I'm happy with the Barnetts. They are a bit stiffer than stock, but stock seem to be sacked to the minimum height after just a bit of use.

You might have a look at those, if they are available in the UK. Here they are about 13GBP. If I recall correctly, the kit has six springs in it, so you get a spare ;^).

Here's a shot of a spreadsheet I made on the KLR clutch over time.


Here are some measurements of some of the springs that were rolling around the Shop of Horrors.


Tom [email protected]

I still held his automatic more or less pointed at him, but he swung on me just the same. It caught me flush on the chin. It was meant to be a hard one, but a pansy has no iron in his bones, whatever he looks like. -Philip Marlowe

'Why' and 'How' are words so important they cannot be too often used. -Napoleon Bonaparte

Sting like a butterfly.
Noli Timere Messorem

Last edited by Tom Schmitz; 10-16-2017 at 07:57 PM. Reason: Clutch spring data had some missing info; updated
Tom Schmitz is offline  
post #3 of 18 Old 10-12-2017, 12:20 AM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,924
Garage
Ah, here you go.

They are widely available on your e-bay, as well.

Tom [email protected]

I still held his automatic more or less pointed at him, but he swung on me just the same. It caught me flush on the chin. It was meant to be a hard one, but a pansy has no iron in his bones, whatever he looks like. -Philip Marlowe

'Why' and 'How' are words so important they cannot be too often used. -Napoleon Bonaparte

Sting like a butterfly.
Noli Timere Messorem

Last edited by Tom Schmitz; 10-12-2017 at 12:22 AM.
Tom Schmitz is offline  
 
post #4 of 18 Old 10-12-2017, 12:27 AM Thread Starter
1st Gear
 
UKbri's Avatar
 
Join Date: Aug 2013
Location: The Black Hills
Posts: 49
Just an FYI. I'm in South Dakota
UKbri is offline  
post #5 of 18 Old 10-12-2017, 12:35 AM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,924
Garage
I missed that.

Since when?

Tom [email protected]

I still held his automatic more or less pointed at him, but he swung on me just the same. It caught me flush on the chin. It was meant to be a hard one, but a pansy has no iron in his bones, whatever he looks like. -Philip Marlowe

'Why' and 'How' are words so important they cannot be too often used. -Napoleon Bonaparte

Sting like a butterfly.
Noli Timere Messorem
Tom Schmitz is offline  
post #6 of 18 Old 10-12-2017, 12:41 AM Thread Starter
1st Gear
 
UKbri's Avatar
 
Join Date: Aug 2013
Location: The Black Hills
Posts: 49
Been back a month. Getting married to Sturgis Chick. So have you got a link to the springs on Ebay over this side of the pond?


Sent from my iPhone using Tapatalk
UKbri is offline  
post #7 of 18 Old 10-12-2017, 12:57 AM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,924
Garage
Congrats on the upcoming nuptials!




Barnett 501-50-05055 Clutch Spring Kit | eBay

If you find them a bit stiff, get a hold of Twin Headlight Ernie. He makes an extended clutch release lever on an exchange basis. He does business via e-mail. https://twinheadlighternie.smugmug.c...ta-Motorsports

Tom [email protected]

I still held his automatic more or less pointed at him, but he swung on me just the same. It caught me flush on the chin. It was meant to be a hard one, but a pansy has no iron in his bones, whatever he looks like. -Philip Marlowe

'Why' and 'How' are words so important they cannot be too often used. -Napoleon Bonaparte

Sting like a butterfly.
Noli Timere Messorem

Last edited by Tom Schmitz; 10-12-2017 at 01:15 AM.
Tom Schmitz is offline  
post #8 of 18 Old 10-12-2017, 09:39 AM Thread Starter
1st Gear
 
UKbri's Avatar
 
Join Date: Aug 2013
Location: The Black Hills
Posts: 49
Thanks man. That's perfect
UKbri is offline  
post #9 of 18 Old 10-16-2017, 06:53 PM Thread Starter
1st Gear
 
UKbri's Avatar
 
Join Date: Aug 2013
Location: The Black Hills
Posts: 49
Got the springs in the post today. They're roughly about 15mm shorter than the stock. Does that sound about right?
Also, what's the torque setting on the spring bolts?
UKbri is offline  
post #10 of 18 Old 10-16-2017, 07:34 PM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,924
Garage
Quote:
Originally Posted by UKbri View Post
Got the springs in the post today. They're roughly about 15mm shorter than the stock. Does that sound about right?
Also, what's the torque setting on the spring bolts?
Nope, that doesn't sound right. I hope you mean 1.5mm.

What I measured, per the table above, was ~31.8mm for a KLR600, ~37.2mm for a 2008 650, and ~33.8mm for the Barnett. Note that the 600 and 650 springs were used and sacked to below the service limit.

Kawasaki changed the springs in 2011, but the overall length remained the same, with a service limit of 38.7mm. You should be comparing the length of the springs to the service limit. They did change the torque spec on the bolts, from 89 in-lb to 81 in-lb.

I'm not quite sure how they took two elements out of the stack and maintained the same spring OAL, but for the fact that the stock spring is pretty weak. Maybe it all works out. Or maybe the factory manual is wrong again. Flying a bit blind here.

If the springs are shorter than service limit by 1.5 mm I wouldn't worry about it too much. The spring rate on the Barnett springs is twice that of the stock spring in the Gen 2 <'11 application.

Specifically, what are you seeing as a measured OEM spring length? I'd love to know the OAL, wire diameter, and outside diameter of your springs. It might help understand what the different part number means on the >'11 springs.

Tom [email protected]

I still held his automatic more or less pointed at him, but he swung on me just the same. It caught me flush on the chin. It was meant to be a hard one, but a pansy has no iron in his bones, whatever he looks like. -Philip Marlowe

'Why' and 'How' are words so important they cannot be too often used. -Napoleon Bonaparte

Sting like a butterfly.
Noli Timere Messorem
Tom Schmitz is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki KLR 650 Forum 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
MPC springs? Temporaryescapee 2008+ KLR650 Wrenching & Mod Questions 11 02-08-2016 12:56 AM
Clutch Cable proper routing from handlebar down onto engine clutch lever. jaimesix How To's & Tech Guides 14 09-21-2015 01:21 PM
Upgraded clutch springs from H-T Verwah Gadgets & Gizmos 2 09-14-2012 01:05 AM
Clutch Removal / Clutch Holder cawoodm 1987 to 2007 Wrenching & Mods 28 04-14-2012 11:54 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