RCGF 21CC-Twin, Руководство оператора, Страница: 13 / 21

1. Choke Control (the choke control should be used when the engine is cold)
2. Throttle
3. Idle Adjustment Screw (adjust the idle speed)
4. (L) Low-speed Needle (adjusts the fuel/air mixture at low speeds)
5. (H) High-speed Needle (adjusts the fuel/air mixture at high speeds)
Idle Adjustment
Turning the Idle Adjustment Screw clockwise will increase the idle speed. Turning the Idle
Screw counter-clockwise will decrease the idle speed.
Low Speed Needle Adjustment
Turning the Low-speed Needle clockwise will lean the fuel/air mixture at low speeds.
Turning the Low-speed Needle counter- clockwise will richen the fuel/air mixture at low
speeds. (The default or factory setting of the Low-speed Needle is as follows: turn the
needle to the fully stop/closed position and then turn back 1.5 turns.)
High Speed Needle Adjustment
Turning the High-speed Needle clockwise will lean the fuel/ air mixture at high speeds.
Turning the low-speed Needle counter-clockwise will richen the fuel/air mixture at high
speeds. (The default or factory setting of the High-speed Needle is as follows: turn the
needle to the fully stop/closed position and then open the needle 2.5 turns). It is
recommended that the High-speed needle be adjusted by the use of a tachometer to
obtain maximum speed. Smooth acceleration and deceleration is an indicator of proper
engine performance.
Ignition Timing Adjustment
The ignition timing is preset on the RCGF21cc twin at 28-30° before Top Dead Center