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9-3
POOR MEDIUM AND HIGH SPEED PERFORMANCE
TRBL
SHTG
EB902000
POOR MEDIUM AND HIGH SPEED PERFORMANCE
POOR MEDIUM AND HIGH SPEED PERFORMANCE
Refer to “STARTING FAILURE/HARD STARTING” section. (Fuel system, electrical system, compres-
sion system and valve train)
Carburetor
S Improperly adjusted fuel level
S Clogged main nozzle
S Clogged or loose pilot jet
Air cleaner
S Clogged air cleaner element
YP******
POOR SPEED PERFORMANCE
POOR SPEED PERFORMANCE
Ignition system
S Dirty spark plug
S Improper heat range
S Faulty ignitor unit
S Faulty pick up coil
Fuel system
S Clogged fuel tank cap breather hole
S Clogged air cleaner element
S Clooged jet
S Improperly adjusted fuel level
S Improper carburetor air vent hose setting
Compression system
S Worn cylinder
S Worn or seized piston ring
S Cylinder head gasket broken
S Cylinder gasket broken
S Carbon deposit build-up
S Improperly adjusted valve clearance
S Improperly contacted valve and valve seat
S Faulty valve timing
Clutch
S Refer to “CLUTCH SLIPPING/DRAGGING”
section
Engine oil
S Improper oil level (low or over oil level)
S Improper quality (Low oil viscosity)
S Deterioration
S Clogged oil passage
Brakes
S Dragging brake