RCGF 40CC-Twin Operator's Manual page 9

6. Connect the ignition wire from ignition module to the spark plug.
7. Install the muffler onto the engine. Be sure to use threadlocker and that the ignition
wire does not contact the muffler.
8. Cut all necessary clearance, carburetor adjustment, cooling, and exhaust holes in the
cowl.
9. Make sure the cowl is secured to the airplane and that the knurled thrust washer
protrudes from the cowl by at least 3.2mm [1/8"].