Axion ZT18533 Replace Spark Plug, Clean Combustion Chamber, Briggs & Stratton Models, Pre-Cleaner

Pre-Cleaner Service

NOTE: Replace a worn or damaged pre-cleaner.

1.Figure 42. Wash the pre-cleaner in liquid detergent and water.

2.Squeeze the pre-cleaner dry and saturate with engine oil. Remove all excess oil by squeezing the pre-cleaner in an absorbent cloth.

Air Filter Service

NOTE: Replace a worn or damaged air filter.

Pre-Cleaner

1.

2.

Air Filter

1.

2.

1.Figure 42. If stamped “Washable,” the filter can be washed with warm water and mild soap.

2.Rinse with tap water with the screen side UP allowing dirt and debris to filter out.

3.Allow the filter to dry overnight before reinstalling.

Figure 42. Air Filter Service

		Reproduction
REPLACE SPARK PLUG				for
Service Interval: Yearly
Spark Plug Gap: .030” (.76mm)			Not
1.	Stop the engine and allow it to cool.
2.	Clean the area around the spark plug.
3.	Remove the spark plug.
4.	Check the spark plug gap. It should be .030” (see			26hp
	Figure 43).
5.	Reinstall the plug into the cylinder head. Torque the
	plug to 180 in. lbs (20 N.m.).
CLEAN COMBUSTION CHAMBER -
BRIGGS & STRATTON MODELS
Service Interval: 100-400 hours
In order to maintain emission compliance, we
recommend that after every 100-400 hours of operation
you have an authorized Briggs & Stratton Service Center
remove combustion deposits from the cylinder, cylinder				Figure 43. Spark Plug Gapping
head, top of piston, and around the valves.

18.5&

21hp

30