General Discussion Anything SuperHawk Related

What clutch should I get?

Old Jul 6, 2014 | 03:57 PM
  #1  
JayTea's Avatar
Thread Starter
Junior Member
Squid
 
Joined: Jul 2013
Posts: 21
From: Nebraska
JayTea is on a distinguished road
What clutch should I get?

So I finally got aroud to putting a exhaust on my 98 hawk so I could start riding it again I started it put it in gear slowly release the clutch and almost noting the bike still moves under its own power barely... I noticed a while back when I would get on the throttle it would slip a little but nothing like this. So I'm going to replace the clutch I want one that will stand up to the ocasional agressive ride and also have a long life... Any recomendations on what I should get?
Also I'm not sure if I should replace the springs and the steel plates? It has around 18000 miles and I have no idea if anything has been replaced yet

Thanks
Jon
Old Jul 6, 2014 | 07:13 PM
  #2  
bbancsov's Avatar
Senior Member
Back Marker
 
Joined: May 2013
Posts: 120
bbancsov is on a distinguished road
Thats odd, must have had a rough life. Ive got 30k on my stock OEM clutch and havent had any slippage issues yet. I don't see why you wouldnt replace it with another OEM unless your running oodles of power
Old Jul 6, 2014 | 07:24 PM
  #3  
7moore7's Avatar
Senior Member
MotoGP
 
Joined: Jul 2010
Posts: 3,871
From: Phoenix, AZ
7moore7 is on a distinguished road
95% of the time the clutch issues on this bike are due to hydraulics. Not likely the plates at all. I'd do a full proper bleed with fresh fluid, and if that doesn't work then rebuild the master cylinder (or just skip and do both). When bleeding, make sure to squeeze the lever a whole bunch to try to work bubbles out of the master- it's easy for them to get caught up in there.

Edit: there are people who ride these bikes hard with 50k+ on them with the OEM clutch.

Last edited by 7moore7; Jul 6, 2014 at 07:26 PM.
Old Jul 6, 2014 | 07:50 PM
  #4  
scottiemann's Avatar
Senior Member
SuperBike
 
Joined: Feb 2007
Posts: 1,252
From: boston
scottiemann is on a distinguished road
I have to agree with the other posters, the OEM clutch has absolutely no problem handling the power and handling it well for a long time... if the clutch is the problem or you just want to replace them I would go with OEM.

If you want it a little more aggressive Ive heard Barnett springs are stiffer and will provide a much more aggressive clutch without breaking the bank.
Old Jul 6, 2014 | 08:50 PM
  #5  
8541Hawk's Avatar
Banned
MotoGP
 
Joined: Aug 2007
Posts: 5,942
From: Lake View Terrace, CA
8541Hawk will become famous soon enough
Originally Posted by 7moore7
Edit: there are people who ride these bikes hard with 50k+ on them with the OEM clutch.
I still have the stock fibers and plates in mine though I have replaced the springs and at last check I am at 98K
Old Jul 6, 2014 | 08:56 PM
  #6  
JayTea's Avatar
Thread Starter
Junior Member
Squid
 
Joined: Jul 2013
Posts: 21
From: Nebraska
JayTea is on a distinguished road
Thanks for the info I already took the side cove off so ill check out the hydrolic system and the clutches tomorrow and try to get a better idea of what's going on. I know the bike hasn't had a easy life the previous owner said it was a track bike before he got it
Old Jul 7, 2014 | 03:35 AM
  #7  
CrankenFine's Avatar
Retired- but not tired!
SuperBike
 
Joined: Aug 2010
Posts: 1,481
From: Pittsburgh
CrankenFine is on a distinguished road
Closely inspect the master cylinder actuator pin at the bushing on your clutch lever. If it's not fully seated into the recess in the bushing it will maintain slight constant pressure on the clutch causing slippage. ( Don't ask me how I learned this.)
Old Jul 7, 2014 | 06:17 AM
  #8  
E.Marquez's Avatar
Administrator
MotoGP
 
Joined: Apr 2006
Posts: 4,402
From: Kempner, TX
E.Marquez is on a distinguished road
remove the slave cylinder from the cover, remove the piston, clean out the crud that you will find in there, reassembly using fresh fluid, assembly slave onto cover, fresh fluid in the master, and bleed the system.......

It would take a tremendous amount of clutch slipping to wear it out... Track use would not do that, common street use would not do that....

Faulty slave or master cylinder could, incorrect assembly could, many...MANY miles or a use like as a trainer bike for years might.

Last edited by E.Marquez; Jul 7, 2014 at 06:58 AM.
Old Jul 7, 2014 | 07:25 AM
  #9  
JayTea's Avatar
Thread Starter
Junior Member
Squid
 
Joined: Jul 2013
Posts: 21
From: Nebraska
JayTea is on a distinguished road
Is it possable that a problem with the master cyl not releasing properly and causing the clutch to slip and wear?
Old Jul 7, 2014 | 07:30 AM
  #10  
twist's Avatar
Senior Member
SuperSport
 
Joined: Jul 2012
Posts: 582
From: Santa Fe, New Mexico
twist is on a distinguished road
while on the subject of drive train....what is the expected life of the cush drive rubbers? I read somewhere that 8,000 mi is the replacement mark. If that's so, I'm waayyyy over due! (sorry if this is hijacking the thread)
Old Jul 7, 2014 | 09:00 AM
  #11  
JayTea's Avatar
Thread Starter
Junior Member
Squid
 
Joined: Jul 2013
Posts: 21
From: Nebraska
JayTea is on a distinguished road
I wouldn't be too worried about it unless your getting essesive play on you crush drive
Old Jul 7, 2014 | 09:35 AM
  #12  
jerryh's Avatar
Senior Member
SuperSport
 
Joined: Apr 2013
Posts: 972
jerryh is on a distinguished road
I replaced them on a bike I had about 60k on and couldn't feel the difference
Old Jul 7, 2014 | 10:05 AM
  #13  
wyldryce's Avatar
Senior Member
Superstock
Superstock
 
Joined: Apr 2007
Posts: 293
wyldryce is on a distinguished road
Originally Posted by jerryh
I replaced them on a bike I had about 60k on and couldn't feel the difference
Agreed. I put a new set in, and noted that it had nearly the same amount of play as the ones with 38k on them.
Old Jul 7, 2014 | 10:44 AM
  #14  
JayTea's Avatar
Thread Starter
Junior Member
Squid
 
Joined: Jul 2013
Posts: 21
From: Nebraska
JayTea is on a distinguished road
We yall are right its not the clutch disks but I am going to replace the clutch springs with stiffer ones since its a cheap upgrade and I already have the cover off
Old Jul 7, 2014 | 10:50 AM
  #15  
7moore7's Avatar
Senior Member
MotoGP
 
Joined: Jul 2010
Posts: 3,871
From: Phoenix, AZ
7moore7 is on a distinguished road
Originally Posted by wyldryce
Agreed. I put a new set in, and noted that it had nearly the same amount of play as the ones with 38k on them.
I wedge thin pieces of plastic (abs or delerin or similar) in there to get rid of some of the play.
Old Jul 7, 2014 | 11:17 AM
  #16  
jerryh's Avatar
Senior Member
SuperSport
 
Joined: Apr 2013
Posts: 972
jerryh is on a distinguished road
Originally Posted by 7moore7
I wedge thin pieces of plastic (abs or delerin or similar) in there to get rid of some of the play.
I like it
Old Jul 7, 2014 | 11:56 AM
  #17  
CrankenFine's Avatar
Retired- but not tired!
SuperBike
 
Joined: Aug 2010
Posts: 1,481
From: Pittsburgh
CrankenFine is on a distinguished road
Originally Posted by JayTea
...its not the clutch disks...
Inquiring minds want to know- what was the problem?
Old Jul 7, 2014 | 01:43 PM
  #18  
JayTea's Avatar
Thread Starter
Junior Member
Squid
 
Joined: Jul 2013
Posts: 21
From: Nebraska
JayTea is on a distinguished road
I'm thinking its the master cylinder the disks look like they have allot of life left. I had figured since the clutch was slipping instead of sticking it would be the clutches but I was wrong
Old Jul 7, 2014 | 02:34 PM
  #19  
8541Hawk's Avatar
Banned
MotoGP
 
Joined: Aug 2007
Posts: 5,942
From: Lake View Terrace, CA
8541Hawk will become famous soon enough
These systems are a bit counter-intuitive in that if you get air in the system the clutch can slip when it gets hot.

Sure with a real low system the clutch will not release but if you miss a bubble or two when things get hot, they expand and cause the slave piston to push out. Then the clutch slips.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
j shizzy wizzy
Technical Discussion
7
Sep 29, 2009 05:51 PM
motojoe
Everything Else
24
Aug 10, 2009 10:51 AM
Blkbird
General Discussion
14
Oct 19, 2007 08:13 PM
Otto Man
General Discussion
8
Jun 28, 2007 08:16 AM
EngineNoO9
General Discussion
6
Feb 20, 2007 08:24 PM


Thread Tools
Search this Thread

All times are GMT -7. The time now is 09:28 AM.


Top

© 2026 MH Sub I, LLC dba Internet Brands



When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.