Viper 173CC Owner's Manual page 10

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.
CAUTION
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.
MANUAL-START ENGINE
1. Move engine to a well-ventilated area, always outdoors, to
prevent carbon monoxide poisoning.
2. Move to an area away from flames or sparks, to avoid
ignition of vapors if present.
3. Remove all debris from air cleaner holes and fuel cap to
ensure proper air flow.
4. Press primer bulb three times. Let bulb fully recover
between each depression. SEE FIGURE 3.
5. Move throttle between the "HALF" and "FULL" position.
(This is not necessary on models with throttle fixed at full
throttle position.) SEE FIGURE 4.
6. Grasp starter handle and pull out slowly, until resistance is
felt. Without letting it retract, pull rope with a rapid stroke.
DO NOT pull out the rope all of the way. Let it return to
its original position slowly. Repeat this step until engine
starts.
7. After engine begins operating, move throttle lever to
"IDLE" position (SEE FIGURE 4). Run engine for 30 to 45
seconds at "IDLE" position until engine warms up. Then
return throttle to operating speed. (This is not necessary on
models with throttle fixed at full throttle position.)
10 Get parts online at www.GetEarthquake.com or Call 800-345-6007 M-F 8-5 CST
173CC VIPER 4-CYCLE ENGINE
STOP IDLE HALF
position position
position position
Owner's Manual
primer bulb
FIGURE 3
FULL
FIGURE 4