Slipper Clutch / Transmission Question - Sportbikes.net
 

Home Message Board SBN Chat SBN Articles Bike Specs Register Classifieds Forum Rules Advertise Contact Us

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.
Go Back   Sportbikes.net > Topic Discussions > New Riders
Register Subscribe Casino Garage FAQ Members List Calendar Arcade Insurance Search Today's Posts Mark Forums Read Motorcycle Escrow


New Riders Welcome to those just starting out or interested in learning more about motorcycling. Please read the stickies, and feel free to ask questions.

Insurance


Site Sponsors
Reply
 
LinkBack (1663) Thread Tools Display Modes
Old 11-14-2012, 01:20 AM   1663 links from elsewhere to this Post. Click to view. #1 (permalink)
JustSaying
World Superbike Racer
 
JustSaying's Avatar
 

Join Date: Mar 2012
Location: Brooklyn, NY
Posts: 599
Gameroom cash: $4494
Sportbike: '06 R6 Raven/ '08 Ninja 250R
Thanks: 367
Thanked 72 Times in 44 Posts
JustSaying is on a distinguished road
Default Slipper Clutch / Transmission Question

For those who haven't read my other thread, I purchased a 2006 R6 last Saturday. The bike is scratch free and only has 6,000 miles on it. The previous owner said he changed the oil every 1000 miles.

When I start from first gear I usually release the clutch to the friction zone and then apply enough throttle to take off smoothly (Usually around 1,500-2,500 RPM). As I almost get out of the friction zone, I feel the clutch plate slip as I fully disengage the clutch. It feels like the plates are skipping off each other. This happens when I keep the throttle and clutch slightly outside the friction zone (on the way to disengaging the clutch).

My question: Is this the "slipper clutch" doing its job so I have nothing to worry about? I've never rode a bike with a slipper clutch before. Should I just practice a more smooth take off or does my clutch need adjustment?

Also, in most gears, the shifting doesn't feel very smooth. It could the fact that I haven't familiarized myself with the bike completely but it could also be old oil and/or an abused tranny/clutch. I doubt a Ninja 250 had smoother shifting than an R6...

Owner said the bike was never stunted on. He works on cars/bikes. A nice guy so I believe what he said.

So, does the bike need an oil change?
New clutch? Do I need to learn to ride smoother?


Thanks!


Sent from my iPhone using Motorcycle.com Free App
JustSaying is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-14-2012, 09:49 AM   #2 (permalink)
TCormier
World 500 GP Champion
 
TCormier's Avatar
 

Join Date: Jun 2010
Location: Austin, TX
Age: 22
Posts: 6,885
Gameroom cash: $53648
Sportbike: 2009 Yamaha FZ6
Thanks: 245
Thanked 720 Times in 492 Posts
TCormier is on a distinguished road
Default

You may be releasing the clutch too slowly. I know on my 636 (has slipper clutch) whenever accelerating it doesn't jump or anything and I just kinda drop the clutch out, ignoring friction zone except for coming from a stop.
__________________
http://www.hazardousracing.com/
Thanks to Hazardous Racing for helping me get to the track!
TCormier is offline   Reply With Quote
Old 11-14-2012, 11:10 AM   #3 (permalink)
MINI NSX
500 GP Racer
 
MINI NSX's Avatar
 

Join Date: Jan 2006
Location: Central Kentucky
Age: 62
Posts: 987
Gameroom cash: $18303
Sportbike: '08 Concours 14, '05 CBR1000RR, '03 RC51
Thanks: 108
Thanked 42 Times in 30 Posts
MINI NSX is on a distinguished road
Default

Quote:
Originally Posted by JustSaying View Post
For those who haven't read my other thread, I purchased a 2006 R6 last Saturday. The bike is scratch free and only has 6,000 miles on it. The previous owner said he changed the oil every 1000 miles.

When I start from first gear I usually release the clutch to the friction zone and then apply enough throttle to take off smoothly (Usually around 1,500-2,500 RPM). As I almost get out of the friction zone, I feel the clutch plate slip as I fully disengage the clutch. It feels like the plates are skipping off each other. This happens when I keep the throttle and clutch slightly outside the friction zone (on the way to disengaging the clutch).

My question: Is this the "slipper clutch" doing its job so I have nothing to worry about? I've never rode a bike with a slipper clutch before. Should I just practice a more smooth take off or does my clutch need adjustment?

Also, in most gears, the shifting doesn't feel very smooth. It could the fact that I haven't familiarized myself with the bike completely but it could also be old oil and/or an abused tranny/clutch. I doubt a Ninja 250 had smoother shifting than an R6...

Owner said the bike was never stunted on. He works on cars/bikes. A nice guy so I believe what he said.

So, does the bike need an oil change?
New clutch? Do I need to learn to ride smoother?


Thanks!


Sent from my iPhone using Motorcycle.com Free App
The slipper part of the clutch only comes into play on deceleration, not when taking off. You might just need to get used to the bike.
__________________
My "toys":
'13 Honda CB1100
'08 Kawasaki Concours 14
'05 Honda CBR1000RR Repsol
MINI NSX is offline   Reply With Quote
Old 11-14-2012, 03:21 PM   #4 (permalink)
JustSaying
World Superbike Racer
 
JustSaying's Avatar
 

Join Date: Mar 2012
Location: Brooklyn, NY
Posts: 599
Gameroom cash: $4494
Sportbike: '06 R6 Raven/ '08 Ninja 250R
Thanks: 367
Thanked 72 Times in 44 Posts
JustSaying is on a distinguished road
Default

Quote:
Originally Posted by MINI NSX View Post
The slipper part of the clutch only comes into play on deceleration, not when taking off. You might just need to get used to the bike.
That's what I assumed. I was just concerned about buying an abused bike. everything else is smooth though.


Sent from my iPhone using Motorcycle.com Free App
JustSaying is offline   Reply With Quote
Old 11-14-2012, 03:36 PM   #5 (permalink)
kevinwilly
Habitual line-stepper
SBN Contributor
 
kevinwilly's Avatar
 

Join Date: Jun 2005
Location: Raleigh, NC
Age: 30
Posts: 11,599
Gameroom cash: $117785
Sportbike: none :(
Thanks: 0
Thanked 1,265 Times in 643 Posts
kevinwilly will become famous soon enoughkevinwilly will become famous soon enough
Default

Yeah, slipper clutches don't feel any different when taking off.


Just for future reference.... you know when you let off the throttle and you get a lot of engine braking? That's the back wheel driving the engine.

On a slipper clutch, it only lets you transmit power one way. So the engine delivers power to the wheels, but when the wheels try to slow down the engine, it's like you are holding the clutch in and power doesn't get transmitted through.

Now, it's not like it completely disengages... it lets SOME power through. Like you're slipping the clutch. Hence the name.

Mechanically, there are several ways to accomplish this. I'm not going to get into that unless you're actually curious.

But basically, a slipper clutch is designed to make part-throttle situations smoother while you are in corner entry, and to help make downshifts smoother. And it does both really beautifully. I was pretty surprised at how much easier it was to be smooth the first time I rode a bike with one. And the aftermarket ones work even better than the OEM-style ones.


In short- change the oil, adjust the clutch cable, and have someone with a little more experience ride the bike around the parking lot and see if they notice anything. Could be that you're just not used to the new bike.

My bmw uses a dry, single plate clutch like on a car. Instead of a wet, multi plate clutch like a motorcycle. And it's hydraulic instead of cable operation. Talk about getting used to a new feeling.... geeze....

But man- it's smooth.
__________________
Moderator of Rider's Gear and Help me Fix it.

PM me if you have questions, concerns, or beer you need to give away.
kevinwilly is offline   Reply With Quote
The Following 2 Users Say Thank You to kevinwilly For This Useful Post:
JustSaying (11-14-2012), tpcarc (11-15-2012)
Old 11-14-2012, 05:58 PM   #6 (permalink)
JustSaying
World Superbike Racer
 
JustSaying's Avatar
 

Join Date: Mar 2012
Location: Brooklyn, NY
Posts: 599
Gameroom cash: $4494
Sportbike: '06 R6 Raven/ '08 Ninja 250R
Thanks: 367
Thanked 72 Times in 44 Posts
JustSaying is on a distinguished road
Default

Quote:
Originally Posted by kevinwilly View Post
Yeah, slipper clutches don't feel any different when taking off.


Just for future reference.... you know when you let off the throttle and you get a lot of engine braking? That's the back wheel driving the engine.

On a slipper clutch, it only lets you transmit power one way. So the engine delivers power to the wheels, but when the wheels try to slow down the engine, it's like you are holding the clutch in and power doesn't get transmitted through.

Now, it's not like it completely disengages... it lets SOME power through. Like you're slipping the clutch. Hence the name.

Mechanically, there are several ways to accomplish this. I'm not going to get into that unless you're actually curious.

But basically, a slipper clutch is designed to make part-throttle situations smoother while you are in corner entry, and to help make downshifts smoother. And it does both really beautifully. I was pretty surprised at how much easier it was to be smooth the first time I rode a bike with one. And the aftermarket ones work even better than the OEM-style ones.


In short- change the oil, adjust the clutch cable, and have someone with a little more experience ride the bike around the parking lot and see if they notice anything. Could be that you're just not used to the new bike.

My bmw uses a dry, single plate clutch like on a car. Instead of a wet, multi plate clutch like a motorcycle. And it's hydraulic instead of cable operation. Talk about getting used to a new feeling.... geeze....

But man- it's smooth.
Thanks! That was quite helpful. I was planning to do some research on the slipper clutch later. I'll just do some trial and error until I figure out how this bike likes to be ridden


Sent from my iPhone using Motorcycle.com Free App
JustSaying is offline   Reply With Quote
Old 11-23-2012, 12:03 AM   #7 (permalink)
JustSaying
World Superbike Racer
 
JustSaying's Avatar
 

Join Date: Mar 2012
Location: Brooklyn, NY
Posts: 599
Gameroom cash: $4494
Sportbike: '06 R6 Raven/ '08 Ninja 250R
Thanks: 367
Thanked 72 Times in 44 Posts
JustSaying is on a distinguished road
Default

UPDATE:

I've been riding the R6 now for about 2 weeks. I notice that when I shift into neutral and let out the clutch, there's a weird rubbing/shake feeling the clutch lever, and then, an extra constant vibration once the clutch lever is fully out.

While I'm riding, I feel the slight vibration when in gear and the clutch lever is fully disengaged. Whenever I pull the clutch lever in fully, I don't feel that vibration or weird rubbing sensation. As I said earlier in this thread, I still get the weird feeling from the clutch when I'm NOT coming out of the friction zone SMOOTHLY. There's a rub/bounce/skip feeling as the clutch connects to the transmission. I never felt that with my 250R which had more miles.

The only other bike I can compare this to is a Ninja 250R. The clutch felt totally different on the 250.

Is there an issue with the clutch or is this how all 600s work?
JustSaying is offline   Reply With Quote
Old 11-23-2012, 11:22 AM   #8 (permalink)
JustSaying
World Superbike Racer
 
JustSaying's Avatar
 

Join Date: Mar 2012
Location: Brooklyn, NY
Posts: 599
Gameroom cash: $4494
Sportbike: '06 R6 Raven/ '08 Ninja 250R
Thanks: 367
Thanked 72 Times in 44 Posts
JustSaying is on a distinguished road
Default

Anyone?


Sent from my iPhone using Motorcycle.com Free App
JustSaying is offline   Reply With Quote
Old 11-23-2012, 12:33 PM   #9 (permalink)
MINI NSX
500 GP Racer
 
MINI NSX's Avatar
 

Join Date: Jan 2006
Location: Central Kentucky
Age: 62
Posts: 987
Gameroom cash: $18303
Sportbike: '08 Concours 14, '05 CBR1000RR, '03 RC51
Thanks: 108
Thanked 42 Times in 30 Posts
MINI NSX is on a distinguished road
Default

Quote:
Originally Posted by JustSaying View Post
Anyone?


Sent from my iPhone using Motorcycle.com Free App
The only thing I can think of is clutch chatter from possible glazing of the clutch plates.
__________________
My "toys":
'13 Honda CB1100
'08 Kawasaki Concours 14
'05 Honda CBR1000RR Repsol
MINI NSX is offline   Reply With Quote
Old 11-23-2012, 04:58 PM   #10 (permalink)
JustSaying
World Superbike Racer
 
JustSaying's Avatar
 

Join Date: Mar 2012
Location: Brooklyn, NY
Posts: 599
Gameroom cash: $4494
Sportbike: '06 R6 Raven/ '08 Ninja 250R
Thanks: 367
Thanked 72 Times in 44 Posts
JustSaying is on a distinguished road
Default

Quote:
Originally Posted by MINI NSX View Post
The only thing I can think of is clutch chatter from possible glazing of the clutch plates.
A local mechanic told me the clutch may have some wear. He adjusted the play which he said should solve the chatter problem but I still notice the vibration/chatter. Unfortunately, I need a new front tire and fork seal.
JustSaying is offline   Reply With Quote
Old 11-23-2012, 07:46 PM   #11 (permalink)
GoIllini
Clueless Newbie
 
GoIllini's Avatar
 

Join Date: Apr 2007
Location: Princeton NJ
Age: 29
Posts: 786
Gameroom cash: $6571
Sportbike: '06 Triumph Daytona 675
Thanks: 3
Thanked 6 Times in 5 Posts
GoIllini will become famous soon enough
Default

Welcome to buying a used bike!

Three years ago, I made the mistake of buying a CBR sight unseen on Ebay. Last time I'll ever do that. When the bike shows up with fairings ziptied on, you know something's wrong. Wound up spending $1500 to get it up to par.

This summer, I bought a Triumph Daytona. "Mint" condition. Only though some idiot installed HID lights on it and it kept blowing fuses until I had the HIDs removed. And me being an idiot, I managed to break the plastic connection on the fuel pump opening and closing the gas tank all the time to change the fuse.

Last edited by GoIllini; 11-23-2012 at 07:52 PM.
GoIllini is offline   Reply With Quote
Old 11-24-2012, 10:58 AM   #12 (permalink)
MINI NSX
500 GP Racer
 
MINI NSX's Avatar
 

Join Date: Jan 2006
Location: Central Kentucky
Age: 62
Posts: 987
Gameroom cash: $18303
Sportbike: '08 Concours 14, '05 CBR1000RR, '03 RC51
Thanks: 108
Thanked 42 Times in 30 Posts
MINI NSX is on a distinguished road
Default

Quote:
Originally Posted by JustSaying View Post
A local mechanic told me the clutch may have some wear. He adjusted the play which he said should solve the chatter problem but I still notice the vibration/chatter. Unfortunately, I need a new front tire and fork seal.
You might be able to R&R the clutch and sand the plates to get rid of the chatter but personally, if I'm going to that much trouble I'm gonna replace them with new ones unless money is a problem.
__________________
My "toys":
'13 Honda CB1100
'08 Kawasaki Concours 14
'05 Honda CBR1000RR Repsol
MINI NSX is offline   Reply With Quote
The Following User Says Thank You to MINI NSX For This Useful Post:
USAFgsxr750again (11-24-2012)
Old 11-24-2012, 12:50 PM   #13 (permalink)
JustSaying
World Superbike Racer
 
JustSaying's Avatar
 

Join Date: Mar 2012
Location: Brooklyn, NY
Posts: 599
Gameroom cash: $4494
Sportbike: '06 R6 Raven/ '08 Ninja 250R
Thanks: 367
Thanked 72 Times in 44 Posts
JustSaying is on a distinguished road
Default

Quote:
Originally Posted by MINI NSX View Post
You might be able to R&R the clutch and sand the plates to get rid of the chatter but personally, if I'm going to that much trouble I'm gonna replace them with new ones unless money is a problem.
Is it possible that I'll change the clutch plate and the chatter will remain? Again, I'm new to motorcycle's so I'm having a hard time finding remedies for most problems.
JustSaying is offline   Reply With Quote
Old 11-26-2012, 10:25 AM   #14 (permalink)
MINI NSX
500 GP Racer
 
MINI NSX's Avatar
 

Join Date: Jan 2006
Location: Central Kentucky
Age: 62
Posts: 987
Gameroom cash: $18303
Sportbike: '08 Concours 14, '05 CBR1000RR, '03 RC51
Thanks: 108
Thanked 42 Times in 30 Posts
MINI NSX is on a distinguished road
Default

Quote:
Originally Posted by JustSaying View Post
Is it possible that I'll change the clutch plate and the chatter will remain? Again, I'm new to motorcycle's so I'm having a hard time finding remedies for most problems.
As long as everything else is in good shape you should be OK. The fiber plates wear out over time, and you don't have that many miles on the bike for the whole clutch to be worn out, unless someone was real hard on it.
__________________
My "toys":
'13 Honda CB1100
'08 Kawasaki Concours 14
'05 Honda CBR1000RR Repsol
MINI NSX is offline   Reply With Quote
Old 11-26-2012, 02:15 PM   #15 (permalink)
kevinwilly
Habitual line-stepper
SBN Contributor
 
kevinwilly's Avatar
 

Join Date: Jun 2005
Location: Raleigh, NC
Age: 30
Posts: 11,599
Gameroom cash: $117785
Sportbike: none :(
Thanks: 0
Thanked 1,265 Times in 643 Posts
kevinwilly will become famous soon enoughkevinwilly will become famous soon enough
Default

It could also be that the steel discs in the clutch are warped. It happens when they get too hot and can cause some slight slipping or chattering under power. Basically the same as what causes the fiber discs to get glazed.

I'd go ahead and buy a new clutch if you are sure that the adjustment is correct. Around 150 bucks and about an hour or two to install. Not a big deal, but you need a nice 3/8" torque wrench, just fyi. Not a $20 harbor freight one.
__________________
Moderator of Rider's Gear and Help me Fix it.

PM me if you have questions, concerns, or beer you need to give away.
kevinwilly is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is there a Slipper Clutch available for an '05 FZ6 Jocko13 FZ6/FZ6R Mods 6 11-05-2009 02:37 PM
Slipper vs non-slipper clutch n00b question. donkeyman New Riders 25 07-10-2009 03:02 PM
slipper clutch budman8 Ninja 500R 6 07-11-2006 12:38 AM
Slipper Clutch? Redlinger General Sportbikes 11 11-07-2004 05:19 PM


All times are GMT -5. The time now is 07:12 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.0.0
1997 - 2007 Sportbikes.net INC. All Rights Reserved.
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Honda 600RR Kawasaki Forum Yamaha R6
1199 Panigale Roadglide Forum Honda CBR1000 Vulcan Forum Yamaha R1
Ducati Monster Harley Forums Honda CBR250R ZX10R Forum Star Raider
Suzuki GSXR V-Rod Forums Honda Shadow Kawasaki Motorcycles Star Warrior
SV650 Forum BMW S1000RR Honda Fury Kawasaki Versys Drag Racing
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes
Volusia Forum BMW F800 Triumph 675 MV Agusta Forum Streetfighters