The maintenance requirements for the 2018 Honda CB650F include:

1. Pre-Ride Inspection:
- Ensure suspension is adjusted to suit the load.
- Check throttle action for smooth movement without binding.
- Verify brake lever and pedal operate normally.
- Check fuel level and refuel if needed.

2. Regular Maintenance Checks:
- Brake light switch
- Clutch system
- Headlight aim
- Side stand
- Suspension
- Steering head bearings
- Nuts, bolts, and fasteners
- Wheels and tires

3. Service Intervals:
- More frequent servicing is required when riding in wet or dusty areas.
- Some components, such as those meeting California emissions standards, have specific maintenance requirements.
- Certain replacements require mechanical skill.

Following these maintenance checks helps ensure safety and reliability while riding the CB650F.