Top Flite TOPA0708 - Manual (Page 18)

18
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16. Install the throttle and choke servos in the servo
tray. Remove the screws and servos and harden the
screw holes with thin CA.
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17. Slide a plywood pushrod retainer over the throttle
and choke outer pushrod. Position the retainer against
the former but do not glue it until the pushrods have
been connected to the servos.
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18. Plug the throttle and choke servo into the receiver.
Position the throttle stick so that it is centered on the
transmitter. Adjust the throttle servo arm so that it is
centered on the throttle servo. Move the throttle arm on
the carburetor so that the throttle is open approximately
half way. Mark the throttle pushrod where it crosses the
servo arm 5/8" [16mm] from the center of the servo.
Make a 90 degree bend at the mark and secure the
throttle pushrod to the servo arm with a nylon Faslink.
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19. Now it should only require minor adjustments
to the throttle endpoints on the transmitter so that the
throttle opens and closes completely. Be sure to also
set up a switch on your transmitter to close the throttle
completely, stopping the engine.
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20. Install the servo operated choke following the
same procedure. Mark and bend the choke pushrod
where it crosses the servo arm 3/8" [9.5mm] from the
center of the servo.
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21. Glue the plywood pushrod retainer to the former.
INSTALL THE AIR RETRACT
CONTROLS
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1. Install the receiver switch and charge receptacle.
We installed ours on the opposite side from the throttle
servo.