Cooling System Maintenance; Exhaust System Maintenance; Inspect Exhaust System; Clean And Inspect The Spark Arrester - Briggs & Stratton 030430 Service And Repair Manual

Cooling System Maintenance

Dirt or debris can restrict air fl ow and cause the engine to
overheat, resulting in poor performance and reduced engine
life. Continued operation with a clogged cooling system can
cause severe overheating and possible engine damage. Clean
these areas (A, Figure 18) yearly or more often when dust or
airborne debris is present.
NOTICE: Do not use water to clean the engine. Water could
contaminate the fuel system. Use a brush or dry cloth to
clean the engine.
Figure 18

Exhaust System Maintenance

WARNING Exhaust heat/gases could ignite
combustibles, structures or damage fuel
tank causing a fire, resulting in death,
serious injury and/or property damage.
Contact with muffler area could cause burns resulting in
serious injury.
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• Keep at least 5 feet (152 cm) of clearance on all sides of
generator including overhead.
• It is a violation of California Public Resource Code,
Section 4442, to use or operate the engine on any forest-
covered, brush-covered, or grass-covered land unless
the exhaust system is equipped with a spark arrester, as
defined in Section 4442, maintained in effective working
order. Other states or federal jurisdictions may have
similar laws.
Contact the original equipment manufacturer, retailer, or
dealer to obtain a spark arrester designed for the exhaust
system installed on this engine.
• Replacement parts must be the same and installed in the
same position as the original parts.
A

Inspect Exhaust System

All exhaust system components must be inspected whenever
the exhaust system is disassembled. Check muffl er mounting
bracket and/or muffl er adapters for cracked welds or break-
age. Check muffl er for split seams, loose internal parts, or
cracked welds. Replace any damaged parts with new OEM
parts.
Never reinstall broken or damaged components.

Clean and Inspect the Spark Arrester

1. To remove muffler heat shield (A, Figure 19) from
muffler (B), remove four screws that connect guard to
muffler bracket.
2. Remove four screws that attach spark arrestor screen
(C).
2. Inspect screen and obtain a replacement if torn,
perforated or otherwise damaged. DO NOT use a
defective screen. If screen is not damaged, clean it with
a commercial solvent.
3. Reattach screen and muffler guard.
B
Figure 19
C
A
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