If one tooth out of the 38 on your Classic 350's rear sprocket has broken in half, it is generally recommended to get it replaced as soon as possible. A broken tooth on the sprocket can negatively affect the performance and reliability of your motorcycle. Here are a few reasons why you should consider replacing it:
Transmission Efficiency: The teeth on the sprocket play a vital role in transferring power from the engine to the rear wheel. When a tooth is missing or broken, the engagement between the sprocket and the chain becomes less effective, leading to reduced transmission efficiency. This can result in power loss and decreased acceleration.
Chain Wear: A broken tooth can put additional stress on the chain. It can cause uneven wear on the chain links and put excessive strain on the remaining teeth of the sprocket. This can lead to accelerated wear and tear of the chain, resulting in premature failure if not addressed promptly.
Safety Concerns: While a single broken tooth may not immediately cause a catastrophic failure, it can create instability in the overall drivetrain system. This can affect the smoothness of the ride and potentially lead to unexpected issues while riding, such as chain slippage or skipping. It's essential to prioritize safety by ensuring the proper functioning of the sprocket and chain.
Considering these factors, it is advisable to get the broken tooth replaced by a professional mechanic or at a reputable service center. They will assess the condition of the sprocket and chain, and if necessary, replace the sprocket entirely. Regular maintenance and timely replacement of worn-out components will help maintain the longevity and performance of your motorcycle.