The ideal RPM (revolutions per minute) for shifting gears in a Yamaha FZ-S or any motorcycle can vary depending on various factors such as riding conditions, speed, and personal preference. However, here are some general guidelines that can help you determine when to shift gears:
Acceleration: When you start from a standstill or during slow-speed maneuvering, it's recommended to shift up to higher gears (e.g., from 1st to 2nd) when the RPM reaches around 3000-4000. This allows for smooth and controlled acceleration.
Normal Riding: During regular city or highway riding, you can typically shift up to higher gears when the RPM reaches around 5000-6000. This range can provide a good balance between power and fuel efficiency.
High-Speed Riding: If you're riding at higher speeds or need quick acceleration, you can shift gears at higher RPMs, typically around 7000-8000 or even higher, depending on the motorcycle's power band and the specific riding situation.
It's important to note that these RPM ranges are approximate and can vary based on your riding style, road conditions, and specific bike model. It's recommended to consult your motorcycle's owner's manual for the manufacturer's recommendations on optimal shifting points.
Additionally, it's beneficial to develop a feel for your bike's engine and listen to the sound of the engine as you ride. With experience, you'll be able to intuitively determine the right time to shift gears based on the sound, engine response, and overall riding dynamics.