Rivera Primo 1056-0002 Pro Clutch (PC-10000-A) - Manual (Page 7)

As delivered, the Pro-Clutch TM clutch-pack requires no adjustment, having been set at the factory.
After the Pro-Clutch TM has accumulated significant mileage, it may require some adjustment due to normal wear.
Use the procedures outlined below if & when adjustment is required. For best performance the diaphragm spring
MUST be compressed to within .010”-.020” of being flat when the shouldered spring retainer nuts have been prop-
erly tightened (bottomed)! This will provide maximum spring pressure to the clutch pack, with minimum hand
effort at the handlebar!
Three clutch springs are available: A stock replacement spring (black in color), a medium spring for street per-
formance (silver in color), and a competition spring (gold in color) for drag race only applications.
If the diaphragm spring adjustment requires LESS ARCH,
this can be accomplished by using one or more of the spe-
cial .020” washers on each of the shouldered nuts. (photo A)
If the diaphragm spring adjustment requires lMORE ARCH,
this can be accomplished by using one or more of the special
.030” washers on the clutch hub studs nuts as pictured.
The diaphragm spring will be compressed to within .010”-to-.020”
of being flat when correctly installed & adjusted
Photo C shows a diaphragm spring that is compressed too far,
and needs to be adjusted. Special adjustment washers be
added to the clutch hub studs as shown in photo B.
This is a diaphragm spring that is correctly adjusted. A little day-
light is showing at either edge, because the spring is within
.010”-to-.020” of being flat! (Slightly bowed outward) as seen in
photo D.
PRO-CLUTCH ADjUSTMENT
Photo A Photo B
Photo C Photo D
WRONG
RIGHT
7
GENERAL WARRANTY
Rivera Primo Inc.’s sole obligation and the customer’s sole remedy is limited to replacement or repair of products free of
charge in the event products fail to perform as warranted for a period of one year from actual date of purchase. Proof of
purchase must accompany any warranty claim. In no event shall Rivera Primo Inc. be liable for claims for any other dam-
ages, whether direct, incidental, foreseeable, consequential, or special (including but not limited to loss of use, revenue or
profit), whether based upon warranty, contract, tort (including negligence) or strict liability arising in connection with the
sale or the failure of Rivera Primo Inc. products to perform in accordance with the stated specifications.
Rivera Primo Inc. makes no other warranty of any kind whatsoever, and specifically disclaims and excludes all other war-
ranties of any kind or nature whatsoever, directly or indirectly, express or implied, including, without limitation, as to the
suitabilitly, productivity, durability, fitness for a particular purpose or use, merchantability, condition, or any other matter
with respect to Rivera Primo Inc. products.
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