You can only detect the signs when the motorcycle shock absorber is seriously damaged. Because the signs appear too late, the cost of repair will be very high.
Shock absorbers are important parts, responsible for reducing vibrations for the vehicle when encountering potholes or bad roads, thereby bringing comfort and smoothness when operating.
1. Common damage to motorcycle shock absorbers
Shock absorbers make noise
During operation, the vehicle makes a “creaking” sound, which is the first sign that the shock absorber system has a problem. The shock absorber tube may be distorted, the spring is rusty, rubbing against the sleeve and cylinder body. For female vehicles using shock absorbers, the front bushing may be worn, dry of oil, or worse, the hydraulic rod may be bent due to impact or strong vibration.
To fix it, you need to remove the shock absorber and straighten the hydraulic rod with a specialized tool. We should take the car to a trusted shop. Because this part is very easy to swap. If the spring is from Thailand but the hydraulic rod is from China, the quality of the entire shock absorber system is only equal to Chinese goods.
Steering wheel deviation
When the car is fully loaded, the car sags on one side with an unbalanced steering wheel. This is a sign that the car may have a broken spring on one side (on the low side) or the springs on both sides have uneven stiffness or a bent piston rod. Depending on the cause, replace the spring or straighten the piston rod.
Shock absorber oil leakage
At the end of the shock absorber body, there is wet oil rust or when the car runs over potholes, it makes a rattling sound and feels bouncy. This is a sign that the shock absorber on the car has a loose seal, leaking hydraulic rod oil.
With front shock absorbers, changing the seals and oil is easier because the piston and cylinder are removable. It is necessary to pour the correct type and amount of shock absorber oil. If after changing the oil, the shock absorber is too hard, it means that the amount of oil has exceeded the specified level, and it is necessary to drain the oil through the drain screw at the bottom of the shock absorber.
2. Some ways to use shock absorbers properly
Riding alone or carrying someone in the back is understood as using the shock absorber at the first level (riding alone). However, when you have to carry someone weighing more than 60 kg, it is necessary to increase the shock absorber tension to a high level to ensure the shock absorber’s endurance. In the case of carrying 2-3 people, it will cause damage (in the long term) to the shock absorber system.
Removing the plastic covers or the chassis covering the rear shock absorber can cause rust on the shock spring. Only special shock absorbers for sports cars can be “stripped” to create a youthful style. The shock absorbers are also covered with a thick layer of special alloy or a layer of plastic so that they can withstand the abrasion of sand, dust, rain, mud, soil, etc.
A good shock absorber is one whose piston rod surface must be shiny throughout its length, the piston rod hole on the cylinder must not have horizontal play, when pulled out, pressed in, there must be no oil film on the rod surface. To keep the shock absorber rod vertical, the difference in feeling between pressing in and pulling out should be as large as possible.
According to Industry and Trade Magazine
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