10
Owner’s Manual
301CC VIPER 4-CYCLE ENGINE
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M-F 8-5 CST
WARNING
CARBON MONOXIDE GAS IS TOXIC. MOVE THE ENGINE
TO A WELL-VENTILATED AREA OUTDOORS, TO PREVENT
CARBON MONOXIDE POISONING. INHALATION CAN
CAUSE UNCONSCIOUSNESS AND DEATH.
NEVER LEAVE ENGINE RUNNING WHILE UNATTENDED.
MOVE ENGINE TO A WELL-VENTILATED AREA, ALWAYS
OUTDOORS, TO PREVENT CARBON MONOXIDE POISONING.
MOVE TO AN AREA AWAY FROM FLAMES OR SPARKS, TO
AVOID IGNITION OF VAPORS IF PRESENT.
NOTICE
OPERATING ENGINE ON ANGLES GREATER THAN 25
DEGREES WILL CAUSE THE ENGINE TO LOSE LUBRICATION
AND SEIZE.
STARTING AND STOPPING THE ENGINE
Review “safety and warning precautions” and “pre-operation
inspection” sections before starting engine.
ENGINE START
1. Move the fuel valve switch to the ON position.
SEE FIGURE 3.
2. Move the engine to a well-ventilated area, always outdoors,
to prevent carbon monoxide poisoning.
3. Move to an area away from flames or sparks, to avoid ignition
of vapors if present.
4. Remove all debris from air cleaner holes and cooling fins to
ensure proper air flow.
5. Move throttle lever 1/2 way between the FULL and LOW
THROTTLE positions.
(This is not necessary on models with
throttle fixed at full throttle position.)
SEE FIGURE 4.
NOTE: FULL THROTTLE position is when the throttle lever is all
the way to the left and LOW THROTTLE position is when the
throttle lever is all the way to the right.
6. Move the choke lever:
• If the engine is cold or the ambient temperature is low, move
choke lever to the FULL CHOKE position. SEE FIGURE 5.
• If the engine is warm or the ambient temperature is high,
move choke lever to the RUN position or 1/2 way between
the FULL CHOKE and RUN positions. SEE FIGURES 5.
FIGURE 3
FUEL SWITCH
ON POSITION
FIGURE 4
Full Throttle
“fast” position
Low Throttle
“slow” position
THROTTLE LEVER
FIGURE 5
Full Choke
position
Run
position
CHOKE LEVER
