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Signs of a Motorcycle with Worn Bearings
According to the principles of operation, engine oil is responsible for lubricating all machine parts to help the engine operate optimally. After a certain period, the oil will become dirty and thickened due to the substances produced by the friction process of moving parts in the engine. If we do not change the oil, the seals will quickly wear out during operation.
- Motorcycles emitting white smoke is the first sign of worn bearings. Due to the amount of oil sticking to the combustion chamber walls being burned along with gasoline, it creates smoke and a pungent smell, which is the main condition leading to the cause of oil consumption in motorcycles as commonly mentioned.
- The motorcycle running sluggishly, making strange noises, and lacking acceleration when the throttle is applied is due to worn seals. The insufficient amount of oil is not enough to lubricate the piston and combustion chamber walls, resulting in poor performance.
Causes of Motorcycle Worn Bearings
Professional motorcycle repair centers will list the main causes of motorcycle worn bearings.
Excessive dirt in the lubricant, poor lubrication capability due to irregular lubricant replacement, and the use of low-quality lubricants can lead to rapid wear and damage to machine parts.
Failure to regularly change the oil can result in insufficient lubrication, causing friction and pressure on the piston rings and cylinder walls. Inadequate lubrication may lead to wear and tear on the piston rings and consequent malfunction.
Improper engine break-in can inadvertently scratch the cylinder walls, resulting in forced abrasive scratches rather than uniform wear. This compromises the seal between the piston rings and cylinder walls, leading to oil consumption issues.
3. Repairing Motorcycles with Oil Consumption Issues
If the piston rings are worn, prompt replacement is necessary to prevent further detrimental consequences. Additionally, understanding proper maintenance and usage techniques is essential.
For brand new or recently overhauled motorcycles, proper engine break-in is crucial (operating at speeds below 40km/h, maintaining steady throttle, avoiding sudden acceleration or harsh braking).
Ensure to change the oil at regular intervals and select the appropriate type for your motorcycle, avoiding cheap, unbranded lubricants, or accidentally pouring scooter oil into a manual transmission bike.
