ATV shopping tips

For a newly purchased ATV, what users need most is how to judge whether it is in good technical condition? What is its identification standard? In order to facilitate users to correctly identify and judge when purchasing ATVs, a brief introduction is now made for reference.

1. Starting performance. After the newly purchased ATV is filled with gasoline and engine oil (refers to a two-stroke car, separated lubrication type) and all starting preparations are ready, the starting method is correct. A good-performance ATV should be able to operate at -10℃～+30℃ Start the operation under the ambient temperature, and the starting time is not more than 15 seconds. Otherwise, it indicates poor starting performance.

2. Running performance. After the engine is started, warm up for 3 to 5 minutes (the specific warm-up time may depend on the local ambient temperature: generally a little longer in winter and shorter in summer). The engine should run smoothly at idling speed, its speed should not be high and low, and the sound is soft and no obvious noise, which means that the engine idling conditions are normal. At this time, you should listen to the meshing sound of the crankcase (i.e. gearbox) and transmission components with a slight response, no noise, and correct and reliable power transmission. The operation should be stable, no abnormal noise, good power performance, acceleration performance, normal fuel combustion, and no engine overheating. After parking, touching the right cover of the crankcase should not be too hot. The temperature of the engine oil measured with a thermometer should be below 85°C. After restarting, the engine should run smoothly at idling speed, and only allow the monotonous sound of mixture combustion explosion. Loosen the throttle handle after rushing the throttle, and the engine must not stall.

3. Speed up performance. When the whole vehicle is in good condition, the ATV can start acceleration and overtake acceleration on a flat road, and pass 200 miles/hour should be ≤13 seconds), which shows that the ATV has good acceleration performance. If the crankshaft speed increases, there is a pause or the increase speed is slow, indicating that the engine has poor acceleration performance. You can also ride an ATV for a road test. When the accelerator is suddenly increased, the vehicle speed can increase sharply, and the driver has a clear sense of reclining while sitting on the vehicle, which indicates that the engine has excellent acceleration performance and normal engine power. If the vehicle speed can only be increased slowly after increasing the throttle, and it can only increase significantly after driving hundreds of meters, it can be judged that the acceleration performance of the engine is poor.

4. The braking performance of the ATV. The ATV is a sports product, and its safety performance is the first in the running performance of the ATV, riders should treat it with caution. Carry out actual vehicle test confirmation when purchasing a vehicle. First choose a dry and flat asphalt pavement or cement pavement with no longitudinal and transverse slopes. Lightweight ATVs (that is, total engine displacement ≤50cc) at a speed of 20 kilometers per hour, and ATVs (that is, total engine displacement ≥50cc) at a speed of 20 kilometers per hour. When driving at a speed of 30 kilometers per hour, when the speed of the ATV is basically stable, use the front and rear braking devices at the same time to stop the ATV. The braking distance of the ATV should not exceed 4 meters, and the ATV should not exceed 7 meters, and the tires of the vehicle have obvious drag marks on the road, which indicates that the braking performance of the vehicle is good. It must be pointed out that when testing the braking performance of the ATV, the straightness of the front and rear wheels of the ATV must be checked separately (that is, the front and rear wheels should be in a straight line). The front and rear wheels of the ATV can land on the ground. When the vehicle is straightened, another person is about 3 meters in front of the ATV, and visually check whether the front and rear wheels of the vehicle are offset. The safest way is to brake Test to verify. At the moment when the ATV brakes at the speed of the above test brake device, if the rear wheel of the vehicle shakes significantly after the brake device works, it can be judged that the front and rear wheels of the ATV are offset. Since the straightness of the front and rear wheels of the vehicle is related to the safety performance of the ATV, it must not be ignored when purchasing.

5. The shock absorption effect of the ATV. In order to alleviate and attenuate the impact and vibration of the ATV during the driving process due to the uneven road, ensure the smoothness and comfort of the ride, and help improve the service life and the stability of the ATV, the ATV is equipped with Shock absorber device. When purchasing, the driver can ride on the ATV, and deliberately choose the uneven road. If there is a strong sense of vibration, it indicates that the ATV has poor shock absorption performance; if the driver only feels slight fluctuations without obvious vibration, it indicates that the ATV has a good shock absorption effect.

When purchasing an ATV, you should also pay attention to check whether the vehicle's operating mechanism is flexible, whether the sound and light equipment on the vehicle is intact, whether the control of the electrical switches is sensitive, whether the circuit and oil circuit are unobstructed, etc. Check the appearance of the vehicle, mainly to see whether the painted parts are bright and uniform, whether there are spots and other defects on the surface of the electroplated parts, and whether all the fasteners of the ATV are firm.