What Causes a Scooter to Shudder When Starting?
1 Answers
The reasons for a scooter shuddering when starting are as follows: 1. The contact area between the friction plates and the clutch housing working surface is too small. Solution: Apply chalk to the surface of the clutch shoe friction plates, install the clutch, start the engine, and accelerate-brake to stop the rear wheel. Repeat this several times, then remove the clutch and inspect the working contact surface of the shoe friction plates. Use a grinding wheel to polish the surface of the clutch shoe friction plates, ensuring the contact area between the friction plates and the clutch housing working surface exceeds 80% of the total area. 2. Excessive wear of the clutch friction plates. Solution: Use a file to reshape the chamfers at both ends of the clutch friction plates, increasing the chamfers that have been reduced due to wear. 3. Sticking movement of the clutch shoes on the pins. Solution: Clean and lubricate the clutch shoe mounting pins (i.e., the transmission plate pins) and the pin holes on the clutch shoes to eliminate the sticking movement of the clutch shoes on the pins. 4. Damage to the small springs of the clutch shoes. Solution: Replace the three small tension springs of the clutch shoes, ensuring they have equal tension to eliminate the asynchronous engagement between the clutch friction plates and the clutch housing.
