Rivera Primo Centri-Force - Brute IV - Manual (Page 4)

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.
You can also get the clutch to engage later by adding spring washers to each of the six spring posts, or get the clutch to
engage sooner by removing a spring washer from each of the six spring posts.
To bleed the clutch hydraulic actuator unit, turn the center adjustment screw until it bottoms out the slave cylinder piston,
then turn out the center adjustment screw 2 to 2 ½ turns only. This will prevent the slave cylinder piston from popping out
of the bore.
DISASSEMBLY & ASSEMBLY
Remove the six bolts from the Centri-Force™ pressure plate housing. Under each countersunk bolt are a large zinc plat-
ed flat washer, 2 spring washers and 1 shim . Carefully remove Centri-Force™ housing from the pressure plate to expose
the 32 ball bearings. Assemble in reverse; DO NOT use thread lock on the 6 bolts. Prior to completing assembly, the hous-
ing and the pressure plate must be indexed. On the back side of the pressure plate there is a small thru hole. On the back
side of the housing there is a small dimple. Line the dimple on the housing with the thru hole on the pressure plate and
then complete assembly. (See Figure 4).
OPERATION
CAUTION:
Always put the motorcycle in NEUTRAL before starting the motorcycle, and when coming to a complete stop. Although it
is possible to start the bike when in gear and to idle in gear without utilizing the clutch lever, it is dangerous and could result
in injury to person or damage to motorcycle. Always pull in the clutch lever when coming to a stop and when at a stand
still. To shift the motorcycle during operation, simply unload the Centri-Force ™ actuated clutch by coming completely off
the throttle, complete the shift, then throttle back up. The Centri-Force™ pressure plate allows you to accelerate slowly or
hard without effort and clutch pull is dramatically reduced or eliminated, making it the perfect solution for riders who find it
difficult to pull in their clutch lever.
screw
zinc washer
wave spring
facing down
middle shim
wave spring
facing up
ASSEMBLY ORDER Figure 4
IMPORTANT SAFETY PRECAUTIONS
WARNING: DO NOT START THE MOTORCYCLE UNLESS THE TRANSMIS-
SION IS IN NEUTRAL OR THE CLUTCH LEVER IS HELD IN, OR SERIOUS
INJURY MAY OCCUR. WHILE STOPPED, PUT THE TRANSMISSION IN NEU-
TRAL OR HOLD THE CLUTCH LEVER IN. FAILURE TO FOLLOW THESE
PRACTICES MAY CAUSE SERIOUS INJURY OR SERIOUS DAMAGE TO THE
MOTORCYCLE.
4