What Causes the Chain Noise on CFMOTO 250?
2 Answers
Chain noise on CFMOTO 250 is related to insufficient lubrication and wear of the chain. Insufficient Chain Lubrication: If the chain lacks lubrication, it can produce abnormal noises. Generally, chain lubrication is required every 500-700 kilometers of riding. Many riders, in an effort to keep their bikes clean and tidy, do not apply sufficient chain lubricant, leading to excessive wear on the gears and chain. At high speeds, the chain may skip teeth, resulting in various noises. Chain Wear: Aggressive riding can cause wear on the chain and gears, necessitating chain replacement. When replacing the chain, both the front and rear sprockets must also be replaced as they form a complete transmission system. Replacing only the chain may result in mismatched components. Solution: Try adjusting the chain tension and applying chain lubricant yourself. If the issue persists, promptly take the bike to a repair shop for servicing.
Over the years, I've repaired many CFMoto 250 motorcycles, and chain noise is quite common. If the chain is too loose, it tends to wobble and produce squeaking sounds, especially noticeable on bumpy roads. Insufficient lubrication increases friction, resulting in grinding noises like metal scraping. Additionally, severe wear on the chain or sprocket teeth can cause clicking sounds. Dirt and weeds clogging the gaps can also contribute. Neglecting these issues may lead to chain breakage and accidents, particularly during high-speed riding. I recommend checking the chain tension before every ride—the standard play should be 20-30mm—and applying dedicated chain lubricant regularly. In humid weather, rust forms more easily, so maintenance should be more frequent. Safety first! It's best to visit a professional workshop every 3,000 km for a thorough inspection of the chain system—peace of mind guaranteed.
