O.S. Engines 160FX-FI - Manual (Page 14)

55˚
22.5˚
Ensuring a proper linkage is important in the 160RX FI system in terms of a proper air-fuel mixture.
In other words, it is necessary to maintain the proper relationship between opening of the air valve
(stick position) and fuel injection by the injector.
LINKAGE AND INITIAL SETTINGS
Call up the ATV menu on the
condition menu and select THR.
Confirm that it is in the center of
the throttle curve when the stick is in
the center position.
Then align the mark in the center
of the air valve at that point.
The center of the curve is the
center, and if the stick is shifted out
of position, give priority to the
center of the throttle curve.
Throttle opening
Throttle stick position
Rotor mark
Center mark
Slow mark
Make the settings according to the procedures described below.
Adjust the throttle trim on the transmitter to 0.
Set the angle adjustment of all throttle channels (ATV AFR) to 100% and sub trim to 0.
Set mixing of the throttle curve, expo channel and so forth to off (0), and set the throttle trim in
the center.
Align the throttle stick on the transmitter at the center position as shown in the figure.
Accurately align the throttle servo and air valve sections as shown in the figure.
(1) Transmitter Trim Adjustment
(2) Confirmation of Amount of Throttle Angle
(3) Throttle Servo and Air Valve Linkage Method
Vertical position of air valve horn: Rotor mark is at the position of the center mark on
the body (90˚ relative to the throttle linkage rod)
Throttle servo: Center position
Right angle
Right angle
Right angle
Right angle
Rotor mark
Center mark
Transmitter
Center
Stick position: Set to the center position.
Fig.8
(4) Adjustment of Amount of Throttle Servo and Air Valve Angle
Move the throttle stick on the transmitter to slow and then full high. If there is excessive or
insufficient opening of the air valve, adjust the opening with the throttle angle adjustment
function (ATV). Confirm that the servo is not subjected to an excessive load due to tugging or
pulling. An excessive load on the servo can cause the battery to discharge and air valve to
lock.
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