Clutch engagement

Tenman

Well-Known Member
Joined
Dec 7, 2013
Messages
2,102
Location
Natchez Ms USA
If the clutch is not engaging until the lever is let all the way out, it's not totally disengaging which would cause the notching shifting. Like someone else said, if it's not slipping it's not wore out.

The weakest link on these clutches is the diaphragm style clutch spring. Replace it with a Barnett pressure plate kit with standard style springs and you will love your clutch again. I have seen a lot of Yamaha clutch problems over the years caused by the oem spring. The first thing I did when I got my S10 was to install the Barnett kit.

The stock clutch on mine with 54k mies works like it's still new. It's hard for me to imagine a better clutch. Other than being a little on the stiff side in stop n go traffic. If it does go out I will be trying out the Barnett.
Does the Barnett have a softer pull? I've got carpal tunnel in my throttle hand. Sometimes in stop n go traffic. It get's to hurting like hell.
 

gv550

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Joined
Sep 14, 2016
Messages
1,335
Location
Listowel, Ontario, Canada
I just finished installing a Barnett pressure plate in a Yamaha V4, the lever pull was harder than the worn-out stock diaphragm spring but Barnett can supply alternate coil springs to provide more or less clamp force and lever pull.20200714_181527.jpg
 
B

ballisticexchris

Guest
The stock clutch on mine with 54k mies works like it's still new. It's hard for me to imagine a better clutch. Other than being a little on the stiff side in stop n go traffic. If it does go out I will be trying out the Barnett.
Does the Barnett have a softer pull? I've got carpal tunnel in my throttle hand. Sometimes in stop n go traffic. It get's to hurting like hell.
I believe the Barnett comes with soft and hard springs. Another option for your carpal tunnel is to go with the full auto clutch. EFM has been making them for a very long time. Their clutches use a ball/ramp setup which is very simple and reliable. It is a direct replacement for the OEM clutch. Depending on configuration you will use the stock clutch plates. The lever will have a very funny super light feel but works.

 

SmokinRZ

Member
Joined
Mar 15, 2020
Messages
91
Location
D/FW
Update: I pulled my clutch apart and the disks were at the min end of the service life measurements. I replaced all of the disks(Friction and steel) with a Yamaha OEM kit and the clutch engages much earlier in the lever travel and the notchy shifting is gone. The old clutch did not slip at all, just engaged at the end of the lever travel and the downshifting was really notchy to the point that I was worrying about wear on the shift forks.
 
Joined
Apr 6, 2017
Messages
33
Location
York, PA
If the clutch is not engaging until the lever is let all the way out, it's not totally disengaging which would cause the notching shifting. Like someone else said, if it's not slipping it's not wore out.

The weakest link on these clutches is the diaphragm style clutch spring. Replace it with a Barnett pressure plate kit with standard style springs and you will love your clutch again. I have seen a lot of Yamaha clutch problems over the years caused by the oem spring. The first thing I did when I got my S10 was to install the Barnett kit.

Just ordered the Barnett kit. I have 23K on mine now.
 
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