Adjustments Following Starting - Zenoah G200PU Owner's Manual

ADJUSTMENTS FOLLOWING STARTUP
(A) ADJUSTING THE IDLING
●
Following startup, set the number of engine rotations for idling at about 2000rpm, rotate the
L needle to the right (to reduce fuel), and search for the position for the highest number of
rotations. From that position, turn the L needle about 1/4 (90°) to the left (to increase fuel)
and set the number of rotations for idling with the idle screw or the transmitter.
(B) ADJUSTING NUMBER OF ROTATIONS AT FULL THROTTLE
● Achieve full throttle slowly.
When the number of rotations stabilizes, turn the H needle to the left and right to locate the
position for the highest number of rotations.
● From the position of the highest number of rotations, open the H needle 1/8 (to increase fuel) to make the setting.
As a rule, consider 100rpm to be the difference between the highest number of rotations and the set number of rotations.
● After making the setting, return to idling. Accelerate rapidly and confirm that there are no problems with acceleration. If
acceleration is poor, open the L needle an additional 1/8th (45°) and confirm that acceleration is smooth. In this case, the
number of rotations for idling will be low, so use the idle screw or transmitter to adjust it.
● This engine has had the carburetor set at the standard position at time of factory manufacture. Thus, no calibration is
normally necessary.
In keeping, if poor acceleration or insufficient rotations at full throttle or the like result, make adjustments in conformance
with the main points of adjustment following startup.
However, the number of rotations for idling will change depending on the size of the propeller used, which will make
adjustment using the idle screw or transmitter necessary.
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Standard settings:
1 1 8
L: turns
1 1 2
H: turns
H needle L needle
Idle screw