Hydraulic Clutch Question - Page 5

 
Cable tension can change with changes in steering angle, hydraulics
are much less sensitive. Good routing will minimize the effect, but
at least on my sv650s there was an annoying amount of friction point
movement when the steering was turned enough for tight maneuvers.
It was bad enough that I thought seriously about trying to adapt
a hydraulic clutch mechanism from another bike.

Adding an "s" bend to the sv's cable reduced  the steering effect
at the price of some increased friction. Hydraulics would have
eliminated it entirely.

bob prohaska

 wrote:


Most large machines (650cc isn't especially large) use a hydraulic
clutch. For a large clutch, the forces can be more than is easily
handled with a direct mechanical linkage such as a cable. A Hydraulic
clutch allows force multiplication.

Just like brakes. The handle operates the master hydrualic cylinder,
the Clutch is on the slave.

Generally smoother than a cable, no opportunity for the cable to
stick, or kinks in the cable, and there is no cable to stretch or
slip.

If the clutch gets large enough, hand forces are inadequate to operate
it. (My YZF600 had a cable clutch, the ST1300 had a hydraulic clutch,
bigger bike, bigger engine, and more horse power necessitated the
large clutch, which would need more force than you hand could easily
provide.)

 

Not necessarily. The Japs have proved they can make easy-to-use cable
clutches than handle up to 130bhp. And that was decades ago.

It's the Italians who get hydraulic clutches wrong so often. I'e lost
count of the Italian bikes I've ridden with heavy hydraulics.


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