18.4 LOSS POWER
RAISE WHEELS OFF GROUND DOES NOT SPIN FREELY
AND SPIN BY HAND
SPIN FREELY
PESSURE LOW CHECK
TIRE
Possibility
★
Brake dragging
★
Drive chain too tight
★
Damaged wheel bearing
★
Wheel bearing needs lubrication
★
Punctured tire
★
Faulty tire valve
★
Fuel / air mixture ratio too rich or lean
★
Clogged in air cleaner
★
Clogged in muffler
★
Restricted fuel flow
★
Clogged fuel tank cap breather hole
★
Faulty pulse generator
★
Faulty CDI unit
★
Leaking head gasket
★
Worn cylinder and piston rings
★
Clean
★
Clean the spark plug
★
Spark plug is incorrect heat range
★
Excessive carbon deposited in
Combustion chamber
★
Wrong type of fuel
★
Fuel / air mixture ratio is lean
★
Use of poor quality fuel
★
worn piston and cylinder
★
Fuel / air mixture ratio is lean
★
Wrong type of fuel
★
Ignition timing too advanced
★
Excessive carbon deposited in
Combustion chamber
CHECK TIRE PRESSURE
ACCELERATE LIGHTY
CHECK IGNITION TIMING
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
Summary of Contents for ET-250
Page 1: ...1 ET 250...
Page 51: ...Use 32 cutter to cut a quarter upper parts out...
Page 54: ......
Page 60: ...7 1 Mechanism Diagram 0 8 1 2kgf m 1 0 1 4kgf m...
Page 67: ...7 7 Cylinder Installation Install dowel pins and new gasket Dowel pins...
Page 96: ...10 1 Mechanism Diagram 5 0 6 0kgf m 1 0 1 4kgf m 0 8 1 2kgf m...
Page 140: ...REAR BRAKE...
Page 158: ......
Page 159: ...17 8 WIRING DIAGRAM...