Howto Play

The torque of the servo determines its ability to drive the load.
A servo with high torque can drive the wheels, swing arms and other parts more powerfully when controlling the steering of the vehicle, especially for larger and heavier RC vehicles or when the steering force needs to be larger in complex road conditions, a high torque servo can…[Read more]

If the speed of the JJRC C8805 RC car is out of control, for example:
1. Sudden acceleration, deceleration or inability to adjust the speed;
2. Or the temperature of the ESC of JJRC C8805 RCV rises abnormally during operation, or there is a strange odor emitted;
3.and the phenomenon that the indicator light flashes abnormally;
It is likely that…[Read more]

1. Check the swing arm joints for any foreign objects stuck or dried up lubricant.
2. If there is foreign matter, clean it up, and if it dries up, add the right amount of special lubricant.
3. Properly adjust the swing arm tension to keep it in the right state.

YIKONG YK4105 RC car has insufficient grip when off-roading on rugged ground and the tires don’t seem to be able to cope with complicated terrain, how to improve its off-road performance?

You can improve the off-road performance of the YIKONG YK4072 RC car by replacing the all-terrain tires. These tires are designed with a deeper tread pattern…[Read more]

I added aluminum reinforcement to strengthen the swing arm and the effect is very obvious. The front swing arm of YIKONG YK4103 RC car has been solved the problem of loosening when jumping, and the car is more stable when jumping at large angles, and the overall control feeling has become more accurate.

Recently, while operating the YIKONG YK4101 remote-controlled car, I noticed that the drive gear felt rather loose. Particularly when the car was climbing a hill or running at high speed, it would sometimes lose power.

Upon inspection, I discovered that the screws on the gears were loose. Subsequently, I reinforced the mounting of the gears and…[Read more]

I find that the YIKONG YK4102 does not have enough grip on wet or soft ground and the car skids a lot. Has anyone changed the tires and what were the results?

I recently played with the YIKONG YK4073 rc car and felt that the suspension system is too stiff, especially when encountering uneven road surface, the car jumps a lot. Has anyone adjusted the shocks? What is the effect?

I’ve noticed that the YIKONG YK4106’s battery is charging very slowly and I’m not sure if it’s the charger or the battery.

Hello, How to upgrade the JJRC C8811 Battery? i found the original battery only can work about 15 minutes, i want to play longer time, so, i want to find one bigger battery.

JJRC C8811 Original battery is 7.4V 750mAh, if i can find the bigger capacity, then, i can play longer time.

but, now, i only can find the original battery from this…[Read more]

Some buddies asked whether the brushed version of C8805 could be upgraded to the brushless one. Well, the answer is yes, but it’ll cost you an arm and a leg. You gotta replace the whole set of electronic parts, like the circuit board, the motor, the servo, and the remote controller. And at the same time, you also need to change the differential, t…[Read more]

How to convert JJRC C8809 rc car body to waterproof?

First, prepare 705 clear glue and 704 black glue for jjrc c8809 rc car.
Positioning tips:
1.Servo circuit part.
2.Servo internal seam servo housing.
3.Gap around servo screws.
4.Gap in the electronic speed controller (ESC) switch.
5.Gap battery sealing film and outlet.
6.Lamp control main…[Read more]