Top Flite TOPA0712 - Manual (Page 20)

20
Many modelers have their own opinions for connectors
and throttle linkage. We have provided materials for a
secure and safe throttle linkage. We have also included
a method to connect a linkage to the choke. This will
require the use of an additional servo for the choke
linkage. Some modelers may prefer a mechanical choke
linkage. Review the following procedure and then modify
it as you wish to fi t your personal preferences.
❏
4. Install a 2-56 ball link and 2-56 nuts to both the
throttle and the choke. Be sure to apply a drop of thread
locker to the threads on the ball link.
❏
5. Make marks on the fi rewall where the throttle, choke
and fuel line will pass through. Remove the engine from
the stand-offs then drill a 3/16" [4.8mm] hole through the
fi rewall for the throttle and choke. Drill a 1/4" [6.4mm]
hole on the mark for the fuel line. (Check the diameter
of your fuel line to be sure that a 1/4" [6.4mm] hole is
correct).
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6. Apply epoxy to the back of the plywood ring as
shown. Do not apply any glue near the blind nuts. You do
not want get any glue into the threads of the blind nuts.
❏
7. Install the ring to the front of the fuselage with eight
#6 x ½" [13mm] screws. The holes for these screws
are pre-drilled in the front of the fuselage. Be sure the
screws go into these holes to assure that the ring is
positioned properly on the front of the fuselage. If any
glue runs out of the ring onto the fuselage, clean it with
a paper towel and alcohol.
❏
8. Assemble the fuel tank stopper assembly with
the fuel tubes as shown. The easiest way is to fi rst
solder a fuel line barb (not included) onto one end of all
three tubes. We used the 5/32" Dubro Fuel Line Barbs
(DUBQ0672). Insert the tubes into the stopper with the
metal plates, and then solder a barb onto the other end
of the two short tubes. Bend the vent tube and connect
the pickup and fueling/defueling lines (not included) to
the short tubes. Connect the clunks to the Tygon Fuel
lines (not included) and secure the lines to the clunk
and brass tubing with the included small tie straps.
❏
9. Install the fuel tank stopper assembly in the fuel
tank. Check that the clunks move around freely in the
fuel tank. Tighten the fuel tank stopper screw.