Rivera Primo Centri-Force - Brute IV Extreme - Manual

I n s t a l l a t i o n I n s t r u c t i o n s
f o r C E N T R I - F O R C E
T M
C l u t c h
w i t h B RU T E I V E X T R E M E
T M
B e l t D r i ve
IMPORTANT SAFETY PRECAUTIONS
WARNING: DO NOT START THE MOTORCYCLE UNLESS THE TRANSMISSION IS IN NEUTRAL OR THE CLUTCH LEVER IS
HELD IN, OR SERIOUS INJURY MAY OCCUR. WHILE STOPPED, PUT THE TRANSMISSION IN NEUTRAL OR HOLD THE
CLUTCH LEVER IN. FAILURE TO FOLLOW THESE PRACTICES MAY CAUSE SERIOUS INJURY OR SERIOUS DAMAGE TO THE
MOTORCYCLE.
Installation of the Centri-Force TM on the Brute IV Extreme TM is easy. First remove the billet outer guard. Next take off the
polished stainless steel belt guide from the clutch basket by removing the six (6) 8-32 countersunk bolts. Disassemble
the pressure plate, diaphragm spring and spring retainer from the basket by first removing the four (4) shouldered nuts
and two (2) lock tabs.
(You will not be re-using the pressure plate, diaphragm spring, spring retainer,
four (4) shouldered nuts, two (2) lock tabs or polished stainless steel belt guide)
Remove the entire clutch pack from the Brute IV Extreme TM clutch basket which contains the following:
1 .120” steel drive plate
1 .100” steel drive plate
3 .080” steel drive plate
3 .059 steel drive plate
7 Kevlar fiber friction plates
(You will not be re-using the .120” steel, the .100” steel and (1) one .080” steel)
Included in the Centri-Force TM kit are (4) four .059” steel drive plates, (2) two Kevlar friction plates and (6) six 8-32 x 1/2”
socket head cap screws (SHCS). Install a .080” steel drive plate first, then a friction plate, alternating between steel and
friction (no two frictions or drive plates together) and end with a friction plate. Then secure the Centri-Force
TM to the
clutch basket with the (6) six 8-32 x 1/2” SHCS.
The new clutch pack for the Centri-Force TM will contain the following:
2 .080” steel drive plate
7 .059” steel drive plate
9 Kevlar fiber friction plates
(Clutch pack height will be approx. 1.575”)
Now adjust as per following instructions:
12450 Whittier Blvd, Whittier, CA 90602
(562) 907-2600 fax (562) 907-2606 E-mail: [email protected]
www.riveraprimoinc.com
2108-0052
ADJUSTMENT FOR CABLE ACTUATED CLUTCH
After all the clutch fibers, steel drive plates and Centri-Force™ pressure plate are installed,
you must make sure that you have at least .060 - .070" of clearance. This clearance can
be measured by using the extension 'depth' end of a dial caliper. Insert the extension into
the well in the center of the Centri-Force™ pressure plate so the end is contacting the sur-
face of the pressure plate. Press down on the six external pressure plate springs so that
the pressure plate is forced away from the housing and against the clutch pack, then meas-
ure the gap between the surface of the pressure plate and the inside surface of the hous-
ing. (See Figure 1.). If this measurement is not correct, you may need to purchase extra
steels to get to the proper specification.
If you want your motorcycle to idle faster, and you find that the Centri-Force™ pressure
plate is engaging to soon, you will need to get more clearance between the pressure plate
and the housing, if you have a slower idle and you need the clutch to engage quicker you
will need less clearance between the pressure plate and the housing.
Figure 1
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