EarthQuake 60005072 - Manual (Page 20)

Operator's Manual
Viper Engine, 159cc
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20
engine will not start Possible cause correction
1) Check control positions Choke OPEN Move lever to CLOSE unless engine
is warm.
Engine switch OFF Turn engine switch to ON.
2) Check fuel Out of fuel Refuel.
Bad fuel; engine started without
treating or draining gasoline, or
engine has been refueled with bad
gasoline
Drain fuel tank and carburetor.
Refuel with fresh gasoline.
3) Remove and inspect spark plugs Spark plugs faulty, fouled or
improperly gapped
Gap, or replace spark plugs.
Spark plugs wet with fuel (flooded
engine)
Dry and reinstall spark plugs. Start
engine with control lever in FAST
position.
4) Take engine to authorized servic-
ing dealer, or refer to manual
Fuel filter clogged, carburetor
malfunction, ignition malfunction,
valve stuck, etc.
Replace or repair faulty compo-
nents as necessary.
engine lacks power Possible cause correction
1) Check air filter Filter element(s) clogged Clean or replace filter element(s).
2) Check fuel Out of fuel Refuel.
Bad fuel; engine started without
treating or draining gasoline, or
engine has been refueled with bad
gasoline.
Drain fuel tank and carburetor.
Refuel with fresh gasoline.
3) Take engine to authorized servic-
ing dealer, or refer to manual
Fuel filter clogged, carburetor
malfunction, ignition malfunction,
valve stuck, etc.
Replace or repair faulty compo-
nents as necessary.
engine operates erratically Possible cause correction
1) Check spark plug Spark plug is defective Install new, correctly gapped plug.
Spark plug gap is incorrect Set gap between electrodes at 0.7
to 0.8 mm.
2) Check air cleaner Air cleaner element is dirty Clean air cleaner element.
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