Grabby Clutch with Sigma - Yamaha R6 Forum: YZF-R6 Forums
 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 05-12-2015, 08:56 AM Thread Starter
My R6 eats me.
 
Garf's Avatar
 
Join Date: May 2015
Location: West Y'rkshur, UK
Posts: 5
Bike: 2009 R6
Grabby Clutch with Sigma

Hi All

I have an issue that I am hoping the collective here will be able to help with.

I am having real problems launching my new R6, so much so that I decided to start from the back of the grid rather than end up at the back anyhow or worst get collected on the start.

I have a Sigma slipper clutch installed (which I love) but looking on their website they say it can be too grabby with standard plates for full on race launches. They recommend YEC Clutch Kits, which I am struggling to find in the UK. Anyone else ever have this grab problem, preferably with the same set up, and found a non YEC clutch kit solution?

Cheers in advance

Garf
Garf is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 05-12-2015, 09:11 AM
"The Dude abides .. "
 
MELK-MAN's Avatar
 
Join Date: Jun 2006
Location: tampa
Posts: 4,719
Bike: 2008 yamaha R6 - 2 bikes
Re: Grabby Clutch with Sigma

what bike...

oem clutche packs are ideal, but i have never bothered with aftermarket slipper clutches (didnt' have one on my 2nd gen race bikes). there is zero need for yec stuff here. Use 3 fingers on the clutch lever to launch your bike, 10-11k rpm. Maybe seek some further advice in the "drag race" section.. practice makes perfect, but some riders will just have a better feel for this.

MICHELIN, EBC, Proflow Technologies
Silkolene, JenningsGP, Engine Ice, Sharkskinz, Pit-Bull


Greg Melka - CCS roadracing and FTR harescrambles

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

My racin n' ridin youtube vids
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
MELK-MAN is offline  
post #3 of 8 (permalink) Old 05-12-2015, 09:16 AM
wat?
 
rhouck's Avatar
 
Join Date: Nov 2007
Location: Los Angeles, CA
Posts: 722
Bike: 09 R6, 14 Street Triple R
Re: Grabby Clutch with Sigma

First -- have you tried launching an R6 with the stock slipper clutch to confirm that your issue is the Sigma and not your technique? The R6 has an extremely short clutch engagement and so the range of nothing->slip->full engagement takes some practice to modulate effectively. Plenty of people complain about it (with the stock slipper) coming from other bikes and it takes some getting used to. If the bike is new to you, I'd consider giving it some time before spending $$ on YEC springs/clutch plates.
rhouck is offline  
 
post #4 of 8 (permalink) Old 05-12-2015, 09:25 AM Thread Starter
My R6 eats me.
 
Garf's Avatar
 
Join Date: May 2015
Location: West Y'rkshur, UK
Posts: 5
Bike: 2009 R6
Re: Grabby Clutch with Sigma

D'oh stooopid me

09 R6.
Cheers I'll have a read there. It does seem extremely abrupt.

I'll wonder down to a local dealer and try a "test ride" on a standard one
To view links or images in this forum your post count must be 5 or greater. You currently have 0 posts.

Last edited by Garf; 05-12-2015 at 09:34 AM.
Garf is offline  
post #5 of 8 (permalink) Old 05-12-2015, 09:43 AM
Why yes I don't!!!!!!!!!!
 
TurboBlew's Avatar
 
Join Date: Jun 2010
Location: FL
Posts: 4,761
Bike: 2007 In Heaven
Re: Grabby Clutch with Sigma

make sure your cable is properly adjusted (near clutch cover) and is lubed well.

With a stock slipper you really only have 1 shot at getting a good launch. I have tilted the bike to the right to allow some oil from the sump to get on the clutch pack before hot lap dragstrip passes. Just make sure you are leaving at or above peak torque.
To view links or images in this forum your post count must be 5 or greater. You currently have 0 posts.
TurboBlew is offline  
post #6 of 8 (permalink) Old 05-13-2015, 07:37 AM Thread Starter
My R6 eats me.
 
Garf's Avatar
 
Join Date: May 2015
Location: West Y'rkshur, UK
Posts: 5
Bike: 2009 R6
Re: Grabby Clutch with Sigma

I got a quick spin on an unmolested R6. There is night and day difference on the clutch action, so the clutch plates look like the culprit. I have found some YEC ones so... well it's only money
To view links or images in this forum your post count must be 5 or greater. You currently have 0 posts.
Garf is offline  
post #7 of 8 (permalink) Old 08-14-2015, 06:40 AM Thread Starter
My R6 eats me.
 
Garf's Avatar
 
Join Date: May 2015
Location: West Y'rkshur, UK
Posts: 5
Bike: 2009 R6
Re: Grabby Clutch with Sigma

Quick update (if a bit late)

I swapped the plates for the YEC ones, and this completely cured the issue.

Bring on the races this weekend!!!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
|
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Garf is offline  
post #8 of 8 (permalink) Old 08-14-2015, 04:12 PM
"The Dude abides .. "
 
MELK-MAN's Avatar
 
Join Date: Jun 2006
Location: tampa
Posts: 4,719
Bike: 2008 yamaha R6 - 2 bikes
Re: Grabby Clutch with Sigma

Quote:
Originally Posted by Garf View Post
Quick update (if a bit late)

I swapped the plates for the YEC ones, and this completely cured the issue.

Bring on the races this weekend!!!
interesting.. and thanks for update. With that aftermarket slipper, yec clutch pack is needed.

MICHELIN, EBC, Proflow Technologies
Silkolene, JenningsGP, Engine Ice, Sharkskinz, Pit-Bull


Greg Melka - CCS roadracing and FTR harescrambles

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

My racin n' ridin youtube vids
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
MELK-MAN is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Yamaha R6 Forum: YZF-R6 Forums 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











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
sigma slipper clutch fitting for 02 model mk_rsix Garage / Mechanical Help 0 10-22-2011 04:00 AM
Selling Sigma Slipper Clutch Nuno42 Bike Parts For Sale 0 09-07-2011 10:40 AM
Don't Pledge Kappa Sigma!!! MaxxxEdge Off Topic Talk 10 03-30-2011 08:32 PM
03'-04' (05'?) R6 Misc Motor parts,Throttle Bodys, Clutch Cover, Clutch Basket etc... Firemann32 Bike Parts For Sale 2 06-24-2010 03:50 PM
Sigma Drystar Lady Jacket PT_R6Babe R6 Girls 0 12-17-2008 10:46 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