Honda Power Equipment HRR216VXA Refueling, Spark Plug Service, Spark Arrester Service if equipped

Spark Plug Service

Recommended spark plug: NGK - BPR5ES

NOTICE

An incorrect spark plug can cause engine damage.

For good performance, the spark plug must be properly gapped and free of deposits.

1. Disconnect the spark
	SPARK PLUG
plug cap and remove
any dirt from around the
spark plug area.

SPARK

PLUG CAP

Spark Arrester Service (if equipped)

Your lawn mower engine is not factory-equipped with a spark arrester. In some areas it is illegal to operate an engine without a spark arrester. Check local laws and regulations. In optional USDA approved spark arrester is available from an authorized Honda servicing dealer (see page 18 for part numbers).

The spark arrester must be serviced every 100 hours to keep it functioning as designed.

1.Allow the engine to cool and disconnect the spark plug cap.

2.Remove the three flange bolts and the heat shield. Remove the setscrew and the spark arrester from the muffler.

3.Check for carbon deposits on the spark arrester and the exhaust port. Use a brush to remove any carbon deposits from the screen. Replace the screen if it is torn or damaged.

4.Installation is the reverse of removal. Tighten all hardware securely.

5.Reconnect the spark plug cap.

2.Remove the spark plug with a 13/16 in (21 mm) spark plug wrench.

3.Inspect the spark plug. Replace it if the electrodes are worn, or if the insulator is cracked or chipped.

4.Measure the spark plug electrode gap with a suitable gauge. The gap should be 0.028 ~ 0.031 in (0.7 ~ 0.8 mm). Correct the gap, if necessary, by carefully bending the side electrode.

5.Install the spark plug carefully, by hand, to avoid cross-threading.

SPARK PLUG WRENCH

0.028 ~ 0.031 in

(0.7 ~ 0.8 mm)

SEALING

WASHER

SETSCREW

BOLT (3) MUFFLER

SPARK ARRESTER

MUFFLER HEAT SHIELD

REFUELING

This engine is certified to operate on unleaded gasoline with a pump octane rating of 86 or higher.

We recommend refueling after each use to minimize the air present in the fuel tank.

Refuel in a well-ventilated area with the engine stopped. If the engine has been running, allow it to cool first. Never refuel the engine inside a building where gasoline fumes may reach flames or sparks.

6.After the spark plug seats, tighten with a 13/16 in (21 mm) spark plug wrench to compress the washer.

If reinstalling the old spark plug, tighten 1/8 to 1/4 turn after the spark plug seats.

If installing a new spark plug, tighten 1/2 turn after the spark plug seats to compress the sealing washer.

NOTICE

A loose spark plug can overheat and damage the engine. Overtightening the spark plug can damage the threads in the cylinder head.

7.Install the spark plug cap on the spark plug.

You may use regular unleaded gasoline containing no more than 10% ethanol (E10) or 5% methanol by volume. In addition, methanol must contain cosolvents and corrosion inhibitors. Use of fuels with content of ethanol or methanol greater than shown above may cause starting and/or performance problems. It may also damage metal, rubber, and plastic parts of the fuel system. In addition, ethanol is hygroscopic, which means it attracts and retains water in the fuel system. Engine damage or performance problems that result from using a fuel with percentages of ethanol or methanol greater than shown above are not covered by warranty.

If your equipment will be used on an infrequent or intermittent basis (more than 4 weeks before next use), refer to the Fuel section of the STORAGE chapter (page 14) for additional information regarding fuel deterioration.