s4 clutch question - Triumph Forum: Triumph Rat Motorcycle Forums
SportbikeTrackGear
» Main Menu

Discussion Forums
 » Twins
 » Tiger
 » General
 » RAT

Features
 » Blogs

Motorcycle.com Links

Contribute
 » Photo

Motorcycle Forums
» Insurance
» Sponsors

Triumph SuperSports Triumph Four-Cylinder Enthusists: TT600, Speed4, and Daytona 600/650

Reply
 
LinkBack Thread Tools Display Modes
Old 01-24-2010, 12:15 AM   #1 (permalink)
New Member
Minitwins
Favourite Bike: Speed Four
 
Join Date: Nov 2009
Location: VA
Posts: 15
s4 clutch question

hey all, I recently purchased a salvage s4 and I think I'm having an issue. Namely when pull in the clutch and try to move the bike, I encounter a lot of resistance, the bike is a lot harder to move than when it is in neutral. Now I don't know whether or not this is normal (if it is, then please forgive this question as I'm a complete newb and this is my first bike); but if it's not, I've identified the transmission as the source of this resistance. So, I'm really hoping said resistance is normal. Thanks.
shroomy is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-24-2010, 10:26 AM   #2 (permalink)
Member
Supersport 400
Favourite Bike: CB550K/Velorex
 
Join Date: Mar 2007
Posts: 98
Other Motorcycle: Speed Four
Quote:
Originally Posted by shroomy View Post
hey all, I recently purchased a salvage s4 and I think I'm having an issue. Namely when pull in the clutch and try to move the bike, I encounter a lot of resistance, the bike is a lot harder to move than when it is in neutral. Now I don't know whether or not this is normal (if it is, then please forgive this question as I'm a complete newb and this is my first bike); but if it's not, I've identified the transmission as the source of this resistance. So, I'm really hoping said resistance is normal. Thanks.
Have you tried adjusting the clutch?
showmetheway428 is offline   Reply With Quote
Old 01-24-2010, 03:21 PM   #3 (permalink)
Lifetime Premium
Site Supporter
World SuperBike
Favourite Bike: '02 CE Speedtona 955i
 
BombFactory's Avatar
 
Join Date: Nov 2006
Location: Buffalo, NY, San Francisco Expatriate
Posts: 2,461
It is normal to have slightly more resistance when pushing the motorcycle in gear with the clutch disengaged as opposed to pushing it with the transmission in neutral. The added resistance while in gear is because of transmission gear/shaft friction that you don't get when the transmission is in neutral.

However, you should still be able to push the motorcycle with ease while in gear with the clutch disengaged. If you are having to struggle to do this, compared to the force required to push the motorcycle when in neutral, the clutch is engaging too much. I too would check the adjustment of the clutch at the lever (0.4-0.8mm play).
__________________
"My life stood-a Loaded Gun- / In Corners-till a Day / The Owner passed-identified- / And carried Me away- /. . .Though I than He-may longer live / He longer must-than I- / For I have but the power to kill, / Without-the power to die-" E.Dickinson
BombFactory is online now   Reply With Quote
Old 01-24-2010, 03:25 PM   #4 (permalink)
New Member
Minitwins
Favourite Bike: Speed Four
 
Join Date: Nov 2009
Location: VA
Posts: 15
yeah, i tightened the cable as far as it would go and the resistance was still there. I've currently dissembled the clutch down through the push plate, so the clutch is as open as it can be and the resistance is still there. When I spin the transmission side of the clutch the engine doesn't spin at all, and with the bike in neutral the rear wheel spins freely; which is why i'm guessing that the transmission is the source of the resistance.
shroomy is offline   Reply With Quote
Old 01-24-2010, 03:32 PM   #5 (permalink)
New Member
Minitwins
Favourite Bike: Speed Four
 
Join Date: Nov 2009
Location: VA
Posts: 15
Quote:
Originally Posted by BombFactory View Post
However, you should still be able to push the motorcycle with ease while in gear with the clutch disengaged. If you are having to struggle to do this, compared to the force required to push the motorcycle when in neutral, the clutch is engaging too much. I too would check the adjustment of the clutch at the lever (0.4-0.8mm play).
It's definitely a struggle to push the bike when it's in gear with the clutch disengaged compared to when it's in neutral.

Oh, I should mention that when the bike was crashed it fell on it's left side and the shifter was bent, so maybe that damaged something in the transmission?

Last edited by shroomy; 01-24-2010 at 03:37 PM. Reason: forgot something
shroomy is offline   Reply With Quote
Old 01-24-2010, 04:23 PM   #6 (permalink)
Lifetime Premium
Site Supporter
World SuperBike
Favourite Bike: '02 CE Speedtona 955i
 
BombFactory's Avatar
 
Join Date: Nov 2006
Location: Buffalo, NY, San Francisco Expatriate
Posts: 2,461
Damage is possible if the shift-shaft was hit hard enough. I bought a wrecked TT600, and the shift-shaft had been hit hard enough to dislodge the c-clip, pushing the shaft in. It damaged the shift-shaft fingers, making gear changing impossible. If the transmission shifts fine when riding and when at a standstill, I don't think shift-shaft damage would cause resistance in pushing. You may need to ovehall the clutch plates.
__________________
"My life stood-a Loaded Gun- / In Corners-till a Day / The Owner passed-identified- / And carried Me away- /. . .Though I than He-may longer live / He longer must-than I- / For I have but the power to kill, / Without-the power to die-" E.Dickinson
BombFactory is online now   Reply With Quote
Old 01-24-2010, 04:54 PM   #7 (permalink)
New Member
Minitwins
Favourite Bike: Speed Four
 
Join Date: Nov 2009
Location: VA
Posts: 15
I think the bike shifts fine, the rear wheel does have to turn a little to complete the shift for a couple of the gears (sorry, i'm completely new to bikes and well, engines in general, so I don't really know what to expect). I guess I'll finish dissembling the clutch and see if anything seems out of place. Thanks for all the help.
shroomy is offline   Reply With Quote
Old 01-26-2010, 09:45 PM   #8 (permalink)
New Member
Minitwins
Favourite Bike: Speed Four
 
Join Date: Nov 2009
Location: VA
Posts: 15
So, in a fit of mild annoyance I sat down behind my bike and began spinning the rear wheel. Lo and behold after 2 rotations or so all the resistance disappeared. Completely. If I let it be for a minute or so, the resistance would come back, and then disappear after a few revolutions.

So I think that the residual oil left on the friction discs and clutch plates is just keeping them stuck together. I'd just kinda assumed that in disengaged clutch the plates would instantly spin freely, but it seems they have to separate first.

I'll order the clutch holder, and when that gets here I'll dissemble the clutch completely and make sure none of the discs are scratched or warped or anything else that might make them stick together. But in the meantime I'll put it back together and see about getting the bike registered. And hopefully, with a little luck, the only thing wrong with the clutch will be my lack of understanding. Once again, thanks for the help.
shroomy is offline   Reply With Quote
Old 01-26-2010, 10:27 PM   #9 (permalink)
Lifetime Premium
Site Supporter
World SuperBike
Favourite Bike: '02 CE Speedtona 955i
 
BombFactory's Avatar
 
Join Date: Nov 2006
Location: Buffalo, NY, San Francisco Expatriate
Posts: 2,461
No problem. It doesn't sound problematic to me, but getting a look at everything might ease your mind. Personally, if everything is shifting as well as you say, I'd just run it. If you begin to notice odd smells (of a slipping clutch) or if shifting becomes problematic, you will know to look at it further. In regards to shifting the transmission when the engine is off: it is normal to have to roll the bike back and forth to get it in and out of all the gears. Good luck.
__________________
"My life stood-a Loaded Gun- / In Corners-till a Day / The Owner passed-identified- / And carried Me away- /. . .Though I than He-may longer live / He longer must-than I- / For I have but the power to kill, / Without-the power to die-" E.Dickinson
BombFactory is online now   Reply With Quote
Sponsored Links
Advertisement
 
Reply

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 Off
Pingbacks are Off
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Clutch Question bobcav Classic, Vintage & Veteran 13 09-13-2009 09:05 PM
Clutch oil question RICHO Classic, Vintage & Veteran 10 06-03-2009 08:00 PM
FNG 72 clutch question hdpearson13 Classic, Vintage & Veteran 1 05-31-2009 10:58 PM
Clutch Question tvsew Sprint Forum 36 11-10-2008 11:10 PM
Clutch question re: '05 ST V-Tach Sprint Forum 3 11-09-2005 07:24 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 11:26 PM.



Motorcycle News, Videos and Reviews
Kawasaki Forum Ducati Forum Harley Davidson Yamaha R1 BMW S1000RR Forum
Vulcan Forums Ducati Monster V-Rod Forum Yamaha R6 Kawasaki Z1000
Kawasaki ZX Forum Honda 600RR Harley Forum YZF-R6 Forum Sportbike Forum
Kawasaki ZX-10R Honda 1000RR Suzuki SV Yamaha FZ8 Can Am Spyder
Kawasaki KLR 650 Honda RC51 Suzuki V-Strom Star Motorcycles Aprilia Forum
Kawasaki Versys Honda Fury Suzuki GSXR Triumph Forum KTM Forum
Kawasaki EX-500 Honda Goldwing GSX-R Forum Triumph 675 Victory Forums

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.

Search Engine Optimization by vBSEO 3.3.2