07 stiff clutch lever

[v65]

Is there anything special that needs to be done to retrofit the 05 slave cylinder for the 06?

Read UweRoss's link, the change in the 06/07 is covered and the retrofit.

 

[GreyGoose]

Is there anything special that needs to be done to retrofit the 05 slave cylinder for the 06?

Read UweRoss's link, the change in the 06/07 is covered and the retrofit.

I've checked that link and it says nothing about how to do this retrofitting or if any problems arose.

greygoose

 

[Chips]

I found the clutch pull on chornbe's '06 to be quite firm. But it wasn't really a problem in the ~1000 miles I rode it. I should add that I usually don't pull the clutch while upshifting beyond 1->2.

 

[Fred H.]

Yamaha changed the diameter of the clutch slave cylinder on the 06 and the end result is the clutch has a shorter engagement range and a stiffer pull.

The part number for the 05 slave cylinder is:

PUSH LEVER COMP.

5JW-16381-00-00

It is a direct replacement for the 06 slave cylinder. All you have to do is remove and replace and bleed/refill the clutch. I ordered it from University Motors for about $45 (701-235-6478) with the FJR discount they give us.

I installed the new (old 05 version) clutch slave cylinder in my 06 and tested with a spring scale. Below you can see photos of both and you can clearly see the diameter difference of the piston.

Measured results

To make clutch handle start to move:

2006 cylinder- 10 lbs

2005 cylinder - 6 lbs

To hold clutch handle to bar

2006 cylinder- 12 lbs

2005 cylinder - 8 lbs

Max force required (mid pull)

2006 cylinder- 16 lbs

2005 cylinder - 12 lbs

 

[Pappy]

I got a feeling that someone's gonna be Sametiming soon!

"...Al, feel like another steak dinner?..."

 

[SkooterG]

Excellent post Fred!!!

Excellent photo and bonus points for the spring scale measurements. I do believe that settles it.

 

[GreyGoose]

I got a feeling that someone's gonna be Sametiming soon!
"...Al, feel like another steak dinner?..."

Pappy,

get your schedule cleared. Looks like another afternoon affair as soon as the tempuratures clear 45.

GreyGoose

 

[IndianaTom]

Measured results
To make clutch handle start to move:

2006 cylinder- 10 lbs

2005 cylinder - 6 lbs

To hold clutch handle to bar

2006 cylinder- 12 lbs

2005 cylinder - 8 lbs

Max force required (mid pull)

2006 cylinder- 16 lbs

2005 cylinder - 12 lbs

If you use a block and tackle (compound pulley), it's easier to to do the work, but your single arms length pull produces a much shorter lift than a pull on a single pulley.

So, if it takes less force on the 05, does that mean the clutch has a shorter throw? And is a shorter throw an issue? (they changed the slave for a reason, no?)

Cool data, thanks for the experiment Fred.

 

[WellWell]

Greetings

8-24-12

Just came from 240 miles ride through N San Francisco terrain.

I have the 06 with the garbage clutch and throttle. There were 2 Connies and and an 05 FJR. His clutch was as bad as mine. My hands were as numb as his (05 FJR) were. His slave cylinder looked exactly like mine.

The Connies had no complaint. The Connies had much larger clutch master cylinders.

Specifically, has anyone had the slave cylinder apart and have specifications that differ between Gen 1 and 2?

I find it difficult to believe the slave cylinder is the culprit. Its usually the master that defines the hydrolic ratios. Or perhaps an assembly issue.

WW