8
Owner’s Manual
301CC VIPER 4-CYCLE ENGINE
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M-F 8-5 CST
OPERATION
PRE-OPERATION INSPECTION
1. Check that engine is filled with the proper amount and
type of oil. For the most appropriate type of oil to use,
see
“Choosing Oil Type” chart on page 9.
2. Check that the engine has the appropriate amount of fuel.
3. Examine underneath and around engine for signs of oil or
fuel leaks.
4. Inspect fuel hoses and connections for tightness and fuel.
5. Look for signs of engine damage.
6. Check that all guards and shields are in place, and all
screws, nuts and bolts are tightened.
7. Eliminate excessive debris around muffler and recoil starter.
8. Be sure air filter and cylinder fins are clean and free of
debris.
WARNING
DO NOT ATTEMPT TO START ENGINE IN THE FOLLOWING
WAYS:
• DO NOT USE STARTING FLUID.
• DO NOT SPRAY FLAMMABLE LIQUIDS OR VAPORS INTO
AIR CLEANER, CARBURETOR OR SPARK PLUG CHAMBER.
• DO NOT REMOVE SPARK PLUG AND PULL ON STARTER
ROPE. FLAMMABLE FUEL CAN SPRAY OUT AND IGNITE
FROM A SPARK FROM SPARK PLUG.
DO NOT REFUEL WHILE SMOKING, NEAR OPEN FLAME, OR
OTHER POTENTIAL HAZARDS.
FUEL IS HIGHLY FLAMMABLE AND MUST BE HANDLED
WITH CARE. NEVER FILL THE TANK WHEN THE ENGINE IS
HOT OR RUNNING. ALWAYS MOVE OUTDOORS TO FILL
TANK.
ALWAYS PERFORM A PRE-OPERATION INSPECTION BEFORE
EACH OPERATION AND CORRECT ANY PROBLEM.
IMPROPER MAINTENANCE OF THIS ENGINE, OR FAILURE
TO CORRECT A PROBLEM BEFORE OPERATION, CAN CAUSE
A MALFUNCTION.
SERIOUS INJURY OR DEATH CAN OCCUR IF THIS WARNING
IS NOT COMPLIED WITH.
9. Check the equipment powered by this engine. Review the
operator’s manual provide with the equipment powered
by this engine for any safety and warning precautions
and/or procedures that should be followed before starting
this engine.
CHECKING AND FILLING THE FUEL TANK
Be sure the engine is located on a level surface before
checking or refilling fuel. Use unleaded regular, unleaded
premium automotive fuels only. Low/no ethanol blends
recommended. Fuel may contain up to 10% ethanol. DO NOT
mix oil with fuel.
NOTE: If using ethanol blends, it is recommended you also use
an ethanol fuel treatment to protect against corrosion. Do Not
use E85 fuel.
1. Make sure engine is cool and not running while filling.
2. Remove fuel cap.
3. Fill tank to fuel level limit. SEE FIGURE 1.
Note: Do not overfill. Leave room for fuel expansion.
4. Replace cap and remove any spilled fuel before operating.
FIGURE 1
FUEL LEVEL LIMIT
