6
Throttle Linkage
A clevis is recommended for attaching the throttle
linkage to the throttle. Attach the throttle linkage to the
hole in the throttle arm (see photo above).
Turn on the radio. With the throttle stick at 1/2 throttle,
install the arm on the servo so that the arm is 90° to the
throttle pushrod.
Select a servo arm that has a hole located 11mm or
7/16" out from center and attach the other end of the
throttle linkage (see photos below).
With low throttle and mid-trim (idle position), the throttle
barrel should be open 1mm, giving a low rpm idle (see
photo above). Adjust the length of the pushrod until the
throttle barrel is exactly 1mm open. Check to be sure
the servo is moving in the correct direction. Full throttle
should open the throttle barrel fully, while low throttle
and low-trim should completely close the throttle barrel.
Reverse the servo throw if necessary.
Note:
It may be necessary to slightly adjust
the length of the throttle pushrod to achieve
the correct mid-trim, low-stick idle position.
Attaching the Fuel Lines
Using medium silicone fuel tubing, attach the fuel tank’s
clunk line to the fuel nipple. This line will supply fuel to
the engine. Attach the vent line to the muffler pressure
nipple. This line pressurizes the fuel tank with the muffler
pressure, creating consistent fuel flow, regardless of the
airplane’s attitude.
At low throttle, mid-trim, the throttle barrel should be 1mm open.
1mm
1/2 throttle
Linkage 11mm out
Vent Line
Fuel Line
Fuel Line
Vent Line