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Author Topic: Clutch issue  (Read 355 times)

Offline firemanjim

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Clutch issue
« on: December 07, 2020, 12:32:13 PM »
Hayabusa folks, 2005 Gen 1 clutch, I have a billet basket all the rest is stock Gen 1 stuff. For some reason if I used the stock length pushrod on the slave side it held the clutch open. I had 4 stock pushrods all the same and one about 1/4 inch shorter. Tried different slave, different sprocket cover, replaced the center clutch pushrod, but the clutch only worked with the short pushrod--- and don't ask me where it came from!! Anyone else had this??
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Offline sportbikeryder

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Re: Clutch issue
« Reply #1 on: December 07, 2020, 07:50:46 PM »
Perhaps an issue with the clutch master or reservoir?

It isn't over filled with fluid is it?
John
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Offline firemanjim

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Re: Clutch issue
« Reply #2 on: December 08, 2020, 12:03:19 AM »
Swapped all of that as well off another Busa.
Official Site Tuner
www.jtsperformance.com
Home of one of the fastest 750cc bikes in the world
239MPH faired, 209MPH naked!
Bonneville 200 Club
El Mirage 200 Club
Mojave Mile 200 Club
Mojave Magnum 200 Club
NEDRA 100 MPH Club
Gairdner 200MPH Achiever 2013
2014 1st place Mojave Mile N/A bike
2015 top speed trophy at WOS
Colorado mile 200 MPH club
2017 DLRA 200 MPH club
2018 Shift Sector 200 MPH Club


Online RansomT

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Re: Clutch issue
« Reply #3 on: December 08, 2020, 06:52:29 AM »
How's the stack height on the clutch?
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Online RansomT

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Re: Clutch issue
« Reply #4 on: December 08, 2020, 06:57:12 AM »
IIRC, The OEM clutch rod is 132.5 mm in length.
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Offline firemanjim

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Re: Clutch issue
« Reply #5 on: December 08, 2020, 11:37:57 PM »
Stack height is good, double checked that as well. And have 3 pushrods on the bench at that length,  they don't work.
Official Site Tuner
www.jtsperformance.com
Home of one of the fastest 750cc bikes in the world
239MPH faired, 209MPH naked!
Bonneville 200 Club
El Mirage 200 Club
Mojave Mile 200 Club
Mojave Magnum 200 Club
NEDRA 100 MPH Club
Gairdner 200MPH Achiever 2013
2014 1st place Mojave Mile N/A bike
2015 top speed trophy at WOS
Colorado mile 200 MPH club
2017 DLRA 200 MPH club
2018 Shift Sector 200 MPH Club

Offline Stainless1

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Re: Clutch issue
« Reply #6 on: December 09, 2020, 10:44:22 AM »
How about the throw-out bearing pusher?  Right one or switched with one from one of your other bike motors? 
I suspect you already clamped the slave to push all the fluid out to start...
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Offline firemanjim

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Re: Clutch issue
« Reply #7 on: December 09, 2020, 09:24:40 PM »
Yup, all of that---and measured the middle rod as well as swapping it---
Trust me, every single part of that system was swapped piece by piece to see what was going on
Official Site Tuner
www.jtsperformance.com
Home of one of the fastest 750cc bikes in the world
239MPH faired, 209MPH naked!
Bonneville 200 Club
El Mirage 200 Club
Mojave Mile 200 Club
Mojave Magnum 200 Club
NEDRA 100 MPH Club
Gairdner 200MPH Achiever 2013
2014 1st place Mojave Mile N/A bike
2015 top speed trophy at WOS
Colorado mile 200 MPH club
2017 DLRA 200 MPH club
2018 Shift Sector 200 MPH Club