GREAT PLANES Easy Sport 40 Instruction Manual page 10

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2. Install the fuel tank in the fuselage. The front of the
tank fits into the cutout in the firewall.
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3. Secure the rear of the tank with a stick to prevent it
from moving in flight. The photo shows an epoxy mixing
stick glued with 6-minute epoxy.
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4. Make any needed cutouts for the muffler to allow for
at least 1/4" [6.4mm] clearance around the muffler. Be sure
to fuelproof any exposed wood around the needle and
muffler cutouts. Install the engine, making sure the muffler
screws are on the engine. Install the muffler on the engine.
You may need a muffler extension for your motor.
Note: If your engine requires an extension, first try sliding
the engine mount as close to the right side of the fuselage
as possible.
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5. Install fuel lines from the fuel outlet on the tank to the
engine and from the vent outlet on the tank to the muffler.
Note: The photo shows an O.S. .40 LA engine with a
muffler extension. You would not need the extension if more
of the fuselage were trimmed away.
MOUNT THE WING TO THE FUSE
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1. Position the wing on the fuselage and attach it with
the 1/4 -20 x 2" [51mm] nylon bolts. Use a 1/4" [6.4mm] drill
to realign the holes slightly if needed. Be careful not to drill
into the plate or blind nuts under the wing.
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2. Hold a string (with one end attached to a pin centered
at the tail) out to a wing tip. Put a piece of tape on the string
to mark the intersection of the string and the wing tip.
Swing the string over to the other wing tip and check to see
if the distances are the same. They should be very close. If
they are off by a large amount make adjustments to the
holes in the wing.
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