2019 Honda TRX420TM1-FM1-FM2 U — Owner's Manual
The service intervals in this schedule are based on average riding conditions. Always follow the inspection and maintenance recommendations and schedules in this owner's manual. Frequent servicing of the air cleaner is especially important to help you avoid a possible costly engine repair.
Other tasks that are more difficult and require special tools are best performed by professionals. Instructions are included in this manual only to assist in emergency service. Some items will need more frequent service if you ride in unusually wet or dusty areas or at full throttle.
Each item on the maintenance schedule requires some mechanical knowledge. The tools in the kit are sufficient to perform routine maintenance and simple repairs. Petrol pumps at service stations normally display the pump octane number.