Yard force YF3100ES-R Operator's Manual page 19

Service Air Cleaner
Your engine will not run properly and may be damaged
if you run it with a dirty air cleaner. Service more often if
operating under dirty or dusty conditions. Replacements are
available at your local Yardfoce service center. Or you can
purchase new by calling 1-866-902-9690.
To service the air cleaner, follow these steps:
WARNING!
Never run the engine without the air filter element installed:
1. Loosen the fastener that holds the cover.
2. Open the cover and remove the filter.
3. To loosen debris, gently tap the filter on a hard surface.
If the filter is excessively dirty, replace with a new filter.
4. Install the filter.
5. Install the cover tabs into the slots.
6. Close the cover and secure with the fastener.
Service Spark Plug
Changing the spark plug will help your engine to start easier
and run better. Disconnect spark plug wire from spark plug
and keep wire away from spark plug while servicing engine.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Replace spark plug if electrodes are pitted, burned or
porcelain is cracked.
4. For replacement use the standard resistor spark plug.
5. Check electrode gap with wire feeler gauge and set gap
at 0.432-0.584 mm, if necessary.
6. Install spark plug, tighten securely.
NOTE:You can purchase a new spark plug by calling
1-866-902-9690.
Remove the spark arrester if equipped, and inspect
for damage or carbon blockage. If replacement parts
are required, make sure to use only original equipment
replacement parts.
NOTICE: You can purchase a spark arrester by calling
1-866-902-9690.
WARNING! Exhaust heat/gases could ignite
combustibles, structures or damage fuel
serious injury.
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 ft. (1.5 m) of clearance on all sides of
pressure washer 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
order. Other states or federal jurisdictions may have
similar laws.
Contact the original equipment manufacturer, retailer, or
dealer to obtain a spark attester 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.
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
Yardfoce service dealer clean the cooling system per
recommended intervals (see Maintenance Schedule).
Equally important is to keep top of engine free from debris.
See "Clean Debris".
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