How to maintain the motorcycle crankshaft

During long-distance driving, motorcycles should not only make reasonable use of inertia for sliding, but also avoid driving during noon hours. Due to the exposure of sunlight at noon, the temperature on asphalt or concrete roads can reach 40 ℃ -50 ℃. This can cause a sudden increase in intake temperature and a sudden decrease in air density, resulting in a rich combustible mixture and difficulty starting the engine. How should I maintain it?

Crankshaft maintenance tips

1. Correct startup method

Before driving in the morning, don't rush to turn on the switch. You can press the foot pedal several times to allow the cylinder to suck in more combustible mixture. Then, turn the key to the ignition position and start the vehicle with your foot. Here is a trick: first, step slowly and lightly, you will hear a clicking sound. If you can't move lightly, it means the starting gear is already in place. Then, quickly step to the bottom and quickly retract your foot, using instant explosive force! Under normal circumstances, the engine can be started 1-3 times. When parking, do not suddenly turn off the ignition. Slowly release the throttle and wait for the engine to idle before turning off the engine.

2. The free stroke and acceleration/deceleration techniques of the throttle

The throttle self oil stroke refers to the distance from the engine at idle to when the vehicle can drive normally and twist the handle. Generally, 2-6mm is the most suitable distance. Driving too short is prone to jerking and accelerating too quickly, which is extremely unsafe; Too long, too slow acceleration, and uncomfortable arms. When accelerating or decelerating the accelerator, be sure to lift and release it slowly, and avoid rushing to the throttle or abruptly retracting the accelerator, as it can easily damage the engine of belt type power assisted vehicles.

3. Maintenance of vehicle surface

The plastic plate on the surface of the car will lose its luster and become dark after a long time. Here is a simple maintenance method. Buy a bottle of spray type car wax and a sponge, and wax the car body every half month. Before waxing, the car body needs to be cleaned. After the plastic plate is completely dry, evenly spray it with spray type car wax. After the wax is slightly dry, polish it with a sponge, and it will become brighter. Its advantage is that a wax film can be formed on the surface of the plastic plate, reducing the corrosion of air and rain on the plastic plate, and protecting against minor scratches. This method is also effective for the maintenance of windshield and helmet mirrors.

4. Routine inspection items before driving

1) Check the tire pressure. If you don't like to press it with your hands, you can use a foot kick. A foot kick is to press your foot on the outside of the wheel and push it hard

2) Fuel level check: If the fuel gauge shows a low fuel level, don't have a lucky mentality. If the car starts cold in the morning, it will definitely consume some fuel. Secondly, if the car is not driving fast during commuting hours, it will also consume fuel, which will result in less mileage than the actual estimate. If there is no gas station nearby, it will be even worse. Don't calculate the fuel consumption too tightly. Currently, scooters do not come with a spare fuel tank. In case the engine stalls due to fuel shortage on the road, you may have to push it. The push of a belt car slows down as it cools down, causing significant resistance. In winter, it can also make you sweat profusely. Friends who enjoy exercising can give it a try.

3) Brake inspection: Use your hand to hold the brake lever and sit in the car to see if you can push the car forward. If you can't push it, it means the brakes are working properly. This inspection is also a common oversight, as safety is very important for yourself and your family.

After using many cars for a long time, you will find that the turn signal switch, headlight switch, and horn switch will become rough or even have poor contact. The solution is to find a bottle of carburetor cleaner, insert the pipe, spray twice inside the switch, and then quickly turn the switch to repair it immediately. The lighting system is also an important step, and everyone must pay attention to this. It is necessary to ensure normal operation.