53
12.4 LOSS POWER
POSSIBLE REASON
RAISE WHEELS OFF GROUND
DOES NOT SPIN FREELY
* BRAKE DRAGGING
AND SPIN BY HAND * DRIVE CHAIN TOOTIGHT
* DAMAGED WHEEL BEARING
* WHEEL BEARING NEEDS
LUBRICATION
SPIN FREELY
PRESSURE LOW
CHECK TIRE PRESSURE *PUNCTURED TIRE
* FAULTY TIRE VALVE
PRESSURE NORMAL
ACCELERATE LIGHTY * FUEL/AIR MIXTURE RATIO
ENGINE SPEED DOES
TOO RICH OR LEAN
NOT INCREASE
* CLOGGED IN AIR CLEANER
* CLOGGED IN MUFFLER
ENGINE SPEED INCREASE * RESTRICTED FUEL FLOW
* CLOGGED FUEL TANK CAP
BREATHER HOLE
CHECK IGNITION TIMING
N.G.
* FAULTY PULSE GENERATOR
* FAULTY C.D.I. UNIT
O.K
TOO LOW
TEST CYLINDER COMPRESSION
* LEAKING HEAD GASKET
* WORN CYLINDER AND PISTON
O.K. RINGS
CHECK CARBURETOR CLOGGED *CLEAN
O.K.
FOULED OR DISCOLORED
CHECK SPARK PLUG * CLEAN THE SPARK PLUG
* SPARK PLUG IS INCORRECT
HEAT RANCE
O.K.
CHECK FOR ENGIN
OVERHEATING
* EXCESSIVE CARBON
OVERHEATING DEPOSITED IN COMBUSTION
CHAMBER
* WRONG TYPE OF FUEL
* FIJEIJAIR MIXTURE RATIO IS
O.K. LEAN
* USE OF POOR QUALITY FUEL
ACCELERATE OR RUN
KNOCKS
* WORN PISTON AND CYLINDER
AT HIGH SPEED * FUEL/AIR MIXTURE RATIO IS
LEAN
* WRONG TYPE OF FUEL
* IGNITION TIMING TOO
ADVANCED
* EXCESSIVE CARBON
DEPOSITED IN COMBUSTION
CHAMBER
Содержание NF150
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