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How to adjust the oil needle of the RC car running on the track?

Author: Site Editor     Publish Time: 2022-03-03      Origin: Site


You need to adjust the main oil needle on the track. The first thing to do is adjust the main oil needle to a relatively prosperous state. First, fill the fuel tank with fuel, drive the car to the highest speed for a few laps, and check whether it cannot reach the highest speed in the prosperous needle state. Adjust the main oil needle slightly (divide one revolution into 12 sections) and drive the car again.


Repeat some fine-tuning to teach the oil needle until the engine reaches the desired speed, and then check whether it cannot reach the maximum speed in the prosperous oil needle state now, loosen the main oil needle by 1/8 turn (counterclockwise).


If the oil needle is adjusted to a poor state when the engine is running, it will cause the engine to overheat, resulting in excessive wear and flameout of the engine. Immediately, a simple way to check the engine temperature, drop a little water on top of the engine radiator.


It is normal if the water spot evaporates within 3-5 seconds. If the water spot evaporates immediately, this is overheating; increase the main oil needle 1/8 turn (counterclockwise). Check again if the engine temperature returns to normal.


There may be a bit of final adjustment in idle speed and low-speed oil needle adjustment after adjusting the main oil needle (please refer to steps 2 and 3). With proper engine tuning, the engine should produce a solid high-frequency sound at top speed and emit noticeably thin smoke.


Note: This carburetor setting is subject to change, changing weather, fuel, burner, or exhaust system. After the change, the leading oil needs to be loosened (counterclockwise) 1/4 to 1/2 turn and returned on the track again.


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