Great Planes Shoestring GP/EP ARF - GPMA1328 - Manual (Page 17)

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10. Attach the engine to the mount using four 6-32 x 1" [25mm]
SHCS, four #6 fl at washers, and four #6 lock washers.
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11. Install your muffl er onto the engine. We are using a
pitts-style muffl er for a clean and easy installation. The stock
muffl er will also work, but a lot of the cowl will have to be
trimmed away.
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12. Cut the fuel tubing coming from the tank to the proper
length and connect the pressure and carb lines to the engine.
The fi ll line (if installed) should be plugged with the included
aluminum fuel line plug and can be routed through a hole in
the cowl which will be done later in the assembly (remember to
replace the fuel line plug after fi lling or draining the fuel tank).
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13. Cut three arms from a four-armed servo arm included
with your throttle servo. Install a screw-lock pushrod
connector into the outer hole in the remaining arm and
secure it in place with a nylon pushrod connector retainer.
Loosely install a 4-40 x 1/8" [3mm] SHCS into the screw-lock
pushrod connector.
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14. Center the throttle servo with your radio system
and install the arm perpendicular to the servo case. Install
the throttle servo onto the throttle servo tray using the
hardware supplied with the servo. Most engine models will
require the throttle servo to be oriented on the tray in the
direction shown.
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15. Drill a hole through the fi rewall using a 3/16" [4.8mm]
drill bit (an extra long bit works well for this step) inline with
the location of the throttle arm on the engine carburetor. Take
care not to drill through the fuel tank!