Service Air Cleaner; Service Spark Plug; Air Cooling System - Briggs & Stratton FACTORY RECONDITIONED PRESSURE WASHER Operating And Maintenance Manual

Service Air Cleaner

Your engine will not run properly and may be damaged if
you run it with a dirty air cleaner.
Service the air cleaner once every 25 hours of operation or
once each year, whichever comes first. Service more often if
operating under dirty or dusty conditions.
To service foam type air cleaner, (Figure 39)
1. Remove screw (A).
A
B
Figure 39. — Typical Foam Air Cleaner
2. Carefully remove air cleaner assembly to prevent
debris from falling into carburetor.
3. Take air cleaner assembly apart and clean all parts.
Wash foam air cleaner (B) in liquid detergent and
water. Squeeze dry in a clean cloth.
4. SATURATE foam air cleaner in engine oil and squeeze
in a clean cloth to remove excess oil.
5. Reinstall clean or new foam air cleaner in base (C).
6. Install air cleaner securely on carburetor with screw.
To service paper air cleaner (Figure 40)
1. Loosen screw (A) and tilt cover (B) down.
C
Figure 40. — Typical Paper Element Air Cleaner
2. Carefully remove cartridge (C) assembly.
C
D
E
B
A
3. To clean cartridge, gently tap pleated paper side on a
flat surface.
4. Reinstall clean or new cartridge assembly inside cover.
5. Insert cover's tabs (D) into slots in bottom of base (E).
6. Tilt cover up and tighten screw securely to base.

Service Spark Plug

Change the spark plug every 100 hours of operation or once
each year, whichever comes first. This will help your engine
to start easier and run better.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
For horizontal engines
3A. Check electrode gap (Figure 41) with wire feeler gauge
and set spark plug gap to .030 inch (.76 mm) if
necessary.
For vertical engines
3B. Set spark plug gap to .020 inch (.51 mm) if necessary.
Figure 41. — Checking Spark Plug Gap
4. Replace spark plug if electrodes are pitted, burned or
porcelain is cracked. Refer to the engine manual for the
recommended replacement plug.
5. Install spark plug and tighten firmly.

Air Cooling System

Over time debris may accumulate in cylinder cooling fins
and cannot be observed without partial engine disassembly.
For this reason, we recommend you have a qualified service
dealer clean the cooling system per recommended intervals
(see Maintenance Schedule in beginning of Maintenance
section). Equally important is to keep top of engine free
from debris.
Clean Combustion Chamber
We recommend you have a qualified service dealer remove
combustion deposits from the cylinder, cylinder head, top of
piston and around valves per recommended intervals (see
Maintenance Schedule in beginning of Maintenance section).
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