Cobra CX50P3, Manual, Page: 54 / 78

54
All washer stacks are double sorted at the factory. They are first sorted by
measured height. Secondly, each stack with bolt is sorted by measured
engagement force. The stacks in each set of three will measure within 0.05mm
(0.002”).
There are many variables in an automatic centrifugal clutch. These variables are
set to world class standards from the factory but will change over time as the
components wear, relax, and just plain get used.
Please see the Tuning Clutch portion of this manual for more helpful info.
Tools recommended for clutch service:

Universal clutch puller- a universal puller that pulls the clutch, main drive gear
and rotor. (Part # MCMUTL70).

5mm T-handle

T25 Torx

Accurate torque wrench in the range of 16 Nm (12 ft-lb, 144 in-lb).

Clutch nut removal tool (ECMU0078) & piston stop (MCMUTL03).

Cobra 3 Shoe Clutch Milk (Part # MCMUGF32).
CLUTCH REMOVAL:
1. Drain the engine transmission oil and remove the clutch cover.
2. Remove the clutch nut (NOT left hand thread) on the end of the crankshaft
with the clutch nut removal tool.
CAUTION:
It is possible to cause damage to the piston when using the piston stop. Care
must be used when removing and installing the clutch
arbor and using the piston stop.
3. Attach the Universal Puller
. There are three 6mm
clutch puller holes located on the ends of the center
hub.
4. Install each of the 3 6mm x 55mmsocket head cap
screws (clutch cover bolts can be used) until each is
similarly snug and the puller looks square to the end
of the crank
5. One at a time, tighten each of the 1/4 turn until the
clutch 'pops' off
NOTE : It may be helpful to use a screwdriver or similar device in the side hole of
the puller to stop rotation
CAUTION:
Do not
use a jaw type puller.