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4. Slide the gearbox into position on the motor
support stick. Trial fit the cowl in position at
this time to be sure the gearbox, motor and
propeller fit in position without interference with
the front of the cowl. Next, trial fit the propeller
onto the gearbox hex nut. If the propeller and
spinner have too much clearance, it may be
necessary to trim or sand part of the motor
support stick at this time. Use a hobby knife to
drill a small hole though the plastic gearbox
and into the motor support. Install a small screw
to secure the two items together.