Black Max BM25CSAC Operator's Manual page 15

 Replace the air filter cover by placing the slots on the air
filter cover over the tabs on the housing, then push the
cover down until it snaps securely in place.
FUEL CAP, TANK, AND LINES
WARNING:
Check for fuel leaks. A leaking fuel cap, tank, or line is a
fire hazard and must be replaced immediately. If you find
any leaks, correct the problem before using the product.
Failure to do so could result in a fire that could cause
serious personal injury.
The fuel cap contains a non-serviceable filter and a check
valve. A clogged fuel filter will cause poor engine per-
formance. If performance improves when the fuel cap is
loosened, the check valve may be faulty or filter clogged.
Replace the fuel cap if required.
SPARK PLUG REPLACEMENT
The spark plug for this engine may be replaced using a
Torch L7RTC, Champion RCJ6Y or equivalent spark plug.
The spark plug gap should be set at .025 in. Use a recom-
mended or equivalent replacement and replace annually.
NOTICE:
Be careful not to cross-thread the spark plug. Cross-
threading will seriously damage the product.
MAINTENANCE
STORING THE PRODUCT
 Clean all foreign material from the product. Store idle unit
indoors in a dry, well-ventilated area that is inaccessible
to children. Keep away from corrosive agents such as
garden chemicals and de-icing salts.
 Abide by all ISO and local regulations for the safe storage
and handling of gasoline.
When storing 1 month or longer:
 Drain all fuel from tank into a container approved for
gasoline. Run engine until it stops.
HIGH ALTITUDE ENGINE OPERATION
Your engine is configured for operation below 2000 feet
altitude at the factory. Your engine must be re-configured
for operation above 2000 feet altitude. Operating the engine
with the wrong engine configuration at a given altitude may
increase its emissions, decrease fuel efficiency, degrade per-
formance and cause irreversible damage. Engines configured
for high altitude operation cannot be operated in standard
altitude conditions. A qualified service center should ensure
that your engine is properly configured for your location.
Page 11 — English