Technical data

18-4 Loss Power
RAISE WHEELS OFF GROUND DOES NOT SPIN FREELY
AND SPIN BY HAND
SPIN FREELY
PESSURE LOW CHECK
TIRE
Possibility
Ϫʳ Brake dragging
Ϫʳ Drive chain too tight
Ϫʳ Damaged wheel bearing
Ϫʳ Wheel bearing needs lubrication
Ϫʳ Punctured tire
Ϫʳ Faulty tire valve
Ϫʳ Fuel / air mixture ratio too rich or lean
Ϫʳ Clogged in air cleaner
Ϫʳ Clogged in muffler
Ϫʳ Restricted fuel flow
Ϫʳ Clogged fuel tank cap breather hole
Ϫʳ Faulty pulse generator
Ϫʳ Faulty CDI unit
Ϫʳ Leaking head gasket
Ϫʳ Worn cylinder and piston rings
Ϫʳ Clean
Ϫʳ Clean the spark plug
Ϫʳ Spark plug is incorrect heat range
Ϫʳ Excessive carbon deposited in
Combustion chamber
Ϫʳ Wrong type of fuel
Ϫʳ Fuel / air mixture ratio is lean
Ϫʳ Use of poor quality fuel
Ϫʳ worn piston and cylinder
Ϫʳ Fuel / air mixture ratio is lean
Ϫʳ Wrong type of fuel
Ϫʳ Ignition timing too advanced
Ϫʳ Excessive carbon deposited in
Combustion chamber
C
HE
C
K TIRE PRE
SSU
RE
ACCELERATE LIGHTY
C
HE
C
K I
G
NITI
O
N TIMIN
G
TEST CYLINDER COMPRESSION
CHECK CARBURETOR
CHECK SPARK PLUG
CHECK FOR ENGINE
OVERHEATING
ACCELERATE OR RUN
AT HIGH SPEED
PRESSURE NORMAL
ENGINE SPEED DOES
NOT INCREASE
ENGINE SPEED INCREASE
N.G.
O.K.
TOO LOW
O.K.
CLOGGED
O.K.
O.K.
O.K.
FOULED OR DISCOLOED
OVERHEATING
KNOCKS