Honda Utility ATV TRX420FE1

Refer to Safety Precautions on page 121.

Your ATV’s oil filter has very specific performance requirements. Use a new Honda Genuine oil filter specified for your model or a filter of equal quality.

NOTICE Using the wrong oil filter may result in leaks or engine damage.

This procedure requires mechanical skill and professional tools such as a torque wrench as well as a means for disposing of the drained fluid (page 226). If you do not have the skills or the tools, see your dealer.

Change the oil with the engine warm to assure complete and rapid draining.

1.With the ATV on level ground, remove the oil check lid (page 144) and the oil fill cap/dipstick from the front crankcase.

2.Place an oil drain pan under the crankcase and remove the engine oil drain bolt (1) and sealing washer (2).

Safety Precautions: This procedure requires mechanical skill and professional tools such as a torque wrench. If you do not have the skills or the tools, see your dealer.

NOTICE: Using the wrong oil filter may result in leaks or engine damage.

Change the oil with the engine warm to assure complete and rapid draining.

Upload a photo of the oil check lid and the oil fill cap/dipstick from the front crankcase.

Engine oil drain bolt and sealing washer removed?

Install a New Engine Oil Filter: Place shop towels under the oil filter cover because oil will flow out.

Upload a photo of the removed seat.

Upload a photo of the removed tank cover assembly.

Remove the seat (Refer to page 133)

Remove the air cleaner housing cover

Loosen the screw and remove the air cleaner assembly from the air cleaner housing

Remove the air cleaner from the air cleaner body

Wash the air cleaner in clean, non-flammable solvent such as kerosene

Inspect for tears or cracks in the foam or seams of the air cleaner. Replace if damaged

Allow the air cleaner to dry thoroughly before applying oil

Warning: This procedure requires trained personnel with PPE!

Deposits visible in the drain tube?

If deposits are visible, proceed with the following steps. If not, skip to step 6.

Upload a photo of the drain tube before cleaning

Drain tube removed successfully?

Drain tube reinstalled and secured with the clip?

Upload a photo of the cleaned and reinstalled drain tube

Sign off on the air cleaner housing drain tube cleaning

Should be serviced by your dealer, unless the owner has proper tools and service data and is mechanically qualified. Refer to the official Honda Service Manual (page 274).

Refer to Safety Precautions on page 121.

Check the operation of the rear brake light switch (1) at the right side behind the engine from time to time. Adjustment is done by turning the adjusting nut (2). Turn the nut in direction (A) if the switch operates too late and in direction (B) if the switch operates too soon.;