User Manual

Step #2
Using a 10mm deep socket wrench, tighten the
clutch nut securely. A piston locking tool or crank
lock tool should be used to prevent the engine
from turning over while tightening. If one is not
available, adjustable pliers can be used, carefully
gripping the circumference of the flywheel while
tightening the clutch nut.
Step #3
Install the clutch shoes and springs on the
flywheel pins. Note the springs must be
positioned such that the ends are in the groove
on the clutch nut. Use of a flat-bladed screwdriver
(and patience) is required to install the springs
and shoes in place.
Note:The clutch shoes can be installed in one of
two directions. Trailing (shown in figure A) will cause
the clutch to engage slightly more smoothly, ideal
for slick conditions, while the leading edge position
(figure A) causes the clutch to engage slightly more
aggressively, advantageous on high traction tracks.
Step #4
Install two 5x10mm ball bearings in the clutch
bell and slide the clutch bell onto the crankshaft.
Several shims are included and, depending on
your specific engine, the number of shims that
will be needed to properly space the clutch bell
will vary. Install the appropriate number of shims
such that when the 3x6mm cap screw and
washer is tightened in place a small amount of
endplay, about .004 – .006 in (.10 – .15mm)
exists. Install the 3x6mm screw and washer, and
tighten securely, making certain to use threadlock
on the screw.
Preparing the Engine
Page 8
Figure A
Figure B