Honda TRX420FE1 4X4 FourTrax Rancher 2019 Manual
![Honda TRX420FE1 4X4 FourTrax Rancher 2019 ATV manual cover](/images/wYVlpDfLVUAvlAwnOfHwCEJb/thumbs/thumb175x175.webp)
To break in your Honda TRX420FE1 engine, avoid full-throttle starts and rapid acceleration for the first 15 hours of use. Gradually increase speed and avoid prolonged operation at a constant speed.
Use a high-quality 4-stroke motorcycle oil with a viscosity of 10W-30 or 10W-40 that meets the JASO T 903 MA standard.
Change the oil every 100 hours or annually, whichever comes first. Always refer to the owner's manual for specific maintenance schedules.
Check the battery for charge, ensure the fuel valve is on, and examine the spark plug for wear. Also, ensure the kill switch is set to the 'Run' position.
Maintain proper tire pressure, ensure regular maintenance, use recommended oil, and avoid rapid acceleration and deceleration.
The recommended tire pressure for both the front and rear tires is 3.6 psi (25 kPa). Always check the tires when they are cold.
Remove the air filter cover, take out the filter, and wash it with a mild detergent. Allow it to dry completely before applying air filter oil and reinstalling it.
Inspect the spark plug every 100 hours or annually, and replace it if necessary. Use a spark plug with a heat range of NGK DPR8EA-9 or equivalent.
Check for blown fuses, inspect battery connections, and ensure the wiring harness is free from damage. Use a multimeter to test electrical components if necessary.
Clean the ATV thoroughly, change the oil, fill the fuel tank and add a fuel stabilizer, disconnect the battery, and store it in a dry, covered area. Inflate the tires to the recommended pressure and cover the ATV to protect it from dust.