Winter Maintenance Tips for Motorcycles

I have been riding my bike for a year, and in winter, it is necessary to have a complete cleaning, careful inspection, and cleaning of every external part, because moisture and acidic substances in the air can unknowingly corrode the paint surface, damage or reduce the surface brightness of the paint. If we persist in doing this every winter, motorcycles will also remain youthful and rejuvenated the following year.

1. Engine

The engine is the core of the entire car, and to keep your car in the best possible condition, it is necessary to regularly check the engine oil. If the oil level is lower than the standard, it should be replenished in a timely manner. All components need to have clear and impurity free oil. Long term parking of motorcycles can cause insufficient lubrication of internal parts of the engine. The oil film on the surface of the original parts will flow towards the bottom of the engine under the action of gravity, causing the parts lacking the oil film to come into direct contact with air and oxidize, ultimately resulting in a lack of lubrication between the cylinder and piston, forming friction and accelerating part wear.

And the long-term accumulation of solidified substances can also generate carbon deposits in the engine, affecting the service life of motorcycles! So in winter, it's best to start the hot bike once a week, and after 3-5 minutes each time, slowly cool the fuel a few times. If the weather conditions are good, it's best to ride a small lap.

For a good car, an air filter is like the lungs of an athlete. So, it is necessary to use a clean air filter. The air filter of imported cars is relatively expensive, costing a few hundred yuan. Although it is expensive, it must be replaced because once the air filter is damaged, dust and sand will all enter the cylinder, wear ring and valve through the carburetor. If it is blocked, it will cause insufficient power and increased fuel consumption. An increase in fuel consumption will inevitably lead to the emission of black smoke at high speeds. Over time, carbon deposits on the valves can compromise the durability and power of the car.

2. Tires

If a motorcycle is not ridden for a long time, our tires may deform due to the weight of the vehicle and some easily oxidized components. Low tire pressure can pose safety risks on the road. For example, there may be inflexibility in steering, which can even affect your ability to turn, increase fuel consumption, and most importantly, the risk of a tire blowout.

There are many impurities in gasoline in China. Once a year, the fuel tank is removed, the oil switch is removed, the water and rust at the bottom are poured out, and the fuel tank is dried and reinstalled.

3. Clutch

Even a 250 displacement 4-cylinder car is enough to meet daily speeds. If you dare to pull it, as long as it doesn't turn red in gear and the oil is good, the basic car is still in normal use. But if you have the bad habit of a half clutch, then the wear and tear of the car will be great. The fragments of the clutch plate cause significant wear on the bearing shells, and attention should be paid to this bad habit.

4. Shock absorption

The front shock absorber is usually replaced with shock-absorbing oil once a year. If there is oil leakage in the rear shock absorber, the oil seal can be replaced when the core is not worn out. However, once the core is worn out, the assembly can only be replaced.

How to maintain the valve? The answer is yes, we can add fuel additives. For a typical 250 model, one bottle can be used 20 times. In addition, the front air duct is brown, and when the carburetor is opened after use, the entire air duct is silver white and shiny as new.

5. Antifreeze

For water-cooled motorcycles, it is recommended to replace the cooling water with a 1:1 mixture of genuine antifreeze and distilled water during the harsh winter season. Before the freezing season, don't forget to replace it, and don't be reluctant to replace it. If there is a contingency, it will be a big loss.

You should check and maintain your car's battery more in winter. Everyone knows that the engine continuously charges the battery of a motorcycle while it is in motion. When the car is turned off, the battery begins to discharge, with an average decrease of 1% in capacitance within 24 hours. If left untreated, not only will it fail to ignite when preparing to ride again, but the sulfides produced on the surface of the battery plates will also affect the charging effect, completely failing to achieve the ideal full life resurrection. That is truly tragic, So in order to improve the service life of the battery, it is best to charge it every two weeks to maintain battery vitality.

6. Chain and brake

Many motorcycle enthusiasts are not very concerned about the chain of the motorcycle, the transmission line from the engine to the wheels. In fact, oiling and cleaning the chain are very simple, but it is recommended not to shift gears to clean the chain, as it is easy to get your hands stuck in the rear teeth, which is more dangerous. In terms of safety, the front and rear brake oil reservoirs should also be regularly inspected, and the brake system should be checked at all times. If any changes are found, they should be replaced or repaired in a timely manner.

Chains, various bolt parts, exhaust pipes, and cylinders all require rust prevention. Both engine oil and butter can be applied, ensuring that every area that needs to be coated is covered. Use engine oil or butter to apply a few drops to the chain and various bolt areas. However, it is best to remove the exhaust pipe, pour a small amount of engine oil into the front hole, start after installation, and hit the accelerator a few times to disperse the oil on the inner wall of the exhaust pipe. Pour a small amount of gasoline from the spark plug into the cylinder, start the motorcycle, and disperse the gasoline on the inner wall of the cylinder.

7. Motorcycles should use winter engine oil

Normally, the viscosity grade of engine oil used in motorcycles is 10W-30 or 10W-40, which is suitable for use in ambient temperatures above -20 ℃. If in cold regions such as Northeast China, the winter temperature may be lower than -20 ℃. Before winter arrives, winter engine oil with a viscosity grade of 5W-30 should be used. It is suitable for use in ambient temperatures above -30 ℃ and has better low-temperature resistance than 10W-30 or 10W-40.

As the temperature drops, the battery capacity will naturally decrease, and the number of normal electric starting times for motorcycles will correspondingly decrease, which can easily lead to battery depletion and motorcycle starting difficulties. Storing motorcycles in a room with heating can alleviate the decrease in battery capacity and effectively prevent electric starting failure. In addition, rubber and plastic parts stored in cold environments for a long time can become hard and brittle, affecting normal use or shortening their service life.

8. Timely cleaning of carbon deposits

The weather is cold, and the cycling speed is generally low, resulting in shorter driving distances. Long term low-speed driving can result in incomplete combustion of the mixture, and carbon deposits can easily form at spark plugs, valves, and pistons, which can seriously affect cycling and even cause the vehicle to fail to start. Therefore, during use and maintenance, the carbon deposits in the above-mentioned areas should be cleaned up in a timely manner.

When starting a cold engine, the engine temperature is very low, the oil viscosity is high, the flowability is poor, and it cannot reach the surfaces of each friction pair for a short time. A loud throttle will exacerbate the wear between components; When the throttle is turned on, due to the low engine temperature, gasoline is not easily vaporized. More liquid gasoline enters the cylinder, diluting the lubricating oil film on the cylinder wall and intensifying wear.

9. Properly thicken the mixture

Low ambient temperature makes gasoline less prone to vaporization, and the air density also increases, which can easily cause a lean mixture, leading to difficulties in starting, easy stalling after starting, and poor acceleration performance. To avoid the occurrence of the above faults, professional maintenance personnel should be invited to adjust the carburetor mixing ratio screw and the position of the main oil needle, and appropriately enrich the mixture.

A portion of the water vapor generated by the combustion of the combustible mixture in the engine will enter the crankcase, and under normal circumstances, this water vapor is discharged through the crankcase ventilation hose. But in winter, when the ambient temperature is low, the engine heats up slowly, and the oil in the crankcase heats up more slowly. Water vapor condenses into water in the low-temperature environment and enters the oil, causing too much water to enter. After stirring, it causes oil emulsification.

Therefore, sufficient preheating and timely high-speed long-distance driving (driving at a speed of 50-60km/h for more than 20 minutes) before driving will not cause oil emulsification. Even if there is emulsification, the water in the oil will evaporate and be discharged from the crankcase through a ventilation hose, thereby eliminating emulsification. In addition, it is necessary to regularly check the color of the engine oil and replace it immediately if it turns white.

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