Hangar 9 Funtana 125 Assembly Manual page 29


Step 11
Connect the Z-bend in the 19 / -inch (492mm) throttle
3
8
pushrod to the outer hole of the carburetor arm as shown.

Step 12
Slide the throttle pushrod wire into the tube. Position the
engine between the mounts. Use four 4mm x 30mm hex
head bolts, four 4mm washers and four 4mm locknuts to
secure the engine to the mount. Use a 3mm hex wrench and
7mm nut driver to tighten the hardware securing the engine
to the mount.
Hangar 9 Funtana 125 ARF Assembly Manual

Step 13
Center the throttle stick and trim. With the radio system
on, remove the standard servo horn from the throttle servo
and place a 180 degree servo horn on the servo so it is
perpendicular to the servo. This will provide equal throw
from open to close at the carburetor.

Step 14
Use the radio to move the servo to the closed throttle
position. Close the carburetor at the engine and use a felt-
tipped pen to mark the pushrod where it crosses the outer
hole of the servo horn.

Step 15
Move the throttle servo to open using the radio. Open the
carburetor at the engine and note where the line crosses the
servo horn. If it does not line up to the outer hole you may
need to use a different length servo arm, a different hole in
the servo horn or reposition the linkage at the carburetor.
Adjusting the throws at the radio can also be used when
using a computer radio, but it is best to set the throw as
closely as possible using mechanical methods.

Step 16
Remove the servo horn from the servo. Use a pin vise and
5/64-inch (2mm) drill bit to enlarge the hole in the servo
horn that worked best for your throttle linkage installation.
On our model we used the hole that was 9/16-inch (14mm)
from the center of the servo horn.
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