Instruction manual

❍ 4. With the engine in place, install the remaining two

4mm x 25mm machine screws, 4mm lock washers, and

4mm nuts in place at the front of the engine mount as

shown in the photograph. Do not tighten the screws at this

time to allow for the positioning of the engine.

❍ 5. Install the spinner backplate, propeller, propeller washer

and the propeller nut onto the engine. Turn the propeller

counterclockwise until it is against the smallest pins on the

backplate. Keep the propeller horizontal when the engine is

against its compression [the point at which you feel resistance

when you turn the crankshaft counterclockwise]. Use an

adjustable wrench to securely tighten the propeller nut.

❍ 6. Measure the distance from the spinner backplate to the

firewall. It should be 3-3/4” [95mm] on both sides of the

spinner backplate. Adjust the engine if needed and tighten the

screws evenly, using Threadlocker on the screws and the nuts

to secure the engine to the mount. Following the engine

manufacturer’s instructions, install the muffler to the engine.

❍ 7. Attach the silicone fuel lines to the engine. The line

you marked “Vent” should be attached to the muffler. The

other line will be attached to the needle valve. Make sure

there are no sharp bends in the lines. If so, carefully adjust

the lines to allow for a smooth flowing bend to the

appropriate fitting of the engine.

8. Attach the spinner cone with the screws provided. Be

careful not to overtighten these screws. They are threaded

into plastic that can strip out if they are over tightened.