Reasons for Shaking During Start-up of a 500-Kilometer Scooter?
2 Answers
Issues with the clutch system can also cause severe body shaking during the semi-engaged state at the moment of starting, leading to vibration in the brake pedal. There are two types of car accelerator pedals: suspended type and floor-mounted type. Here is some extended information: 1. Accelerator Pedal: The accelerator pedal is a control pedal that regulates car acceleration. Whether it's a left-hand drive or right-hand drive vehicle, it is installed on the right side and is best operated with the right foot. 2. Floor-Mounted Pedal: The pivot is located at the bottom of the pedal, allowing the entire foot to rest on it. The pedal itself acts as a fulcrum, making it easier for the calf and ankle to control the pedal, thereby improving precision in foot control and reducing fatigue. 3. Suspended Accelerator Pedal: The pivot is located at the top of the pedal bracket, and the lower structure is relatively simpler. This design makes the pedal lighter to operate, and the pedal bracket can be designed as an iron rod. This largely reduces costs, making it a preferred choice for manufacturers.
Just helped a friend check a similar issue yesterday. It's indeed frustrating for a brand-new 500km bike to experience starting shudder. This is typically a break-in period issue with the drivetrain - the metal coating on the new clutch shoes and clutch bell surface hasn't worn smooth yet, causing slippage due to insufficient surface contact. An overly tight belt or debris in the pulley groove can also disrupt power transmission, much like how new leather shoes always feel a bit stiff when walking. Also check if the transmission case vent tube is blocked - I've seen many bikes where overheated and deformed clutch shoes resulted from poor heat dissipation. My advice: don't rush to disassemble components yet. Ride another 200km while observing changes, and avoid aggressive throttle starts. If the shudder persists beyond 800km, you'll need to open up the transmission case for cleaning and replace the variator rollers.
