Sym Quad Lander 300, Руководство по обслуживанию

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To this chapter contents
1. GENERAL INFORMATION
C. Engine runs sluggish (especially in low speed and idling)
1-16
Check and adjustment Fault condition Probable causes
Check ignition timing (using
ignition lamp)
D. Engine runs sluggish (High speed)
Normal Abnormal
y
Incorrect ignition timing (malfunction of
CDI or AC alternator)
Adjust the air screw of
carburetor
Good Poor
y
Rich mixture (loosen the screw)
y
Lean mixture (tighten the screw)
Air sucked through carburetor
gasket
Check for fuel supplying system
in automatic fuel cup
Check if carburetor clogged
y
Poor heat insulation gasket
y
Carburetor lock loose
y
Poor intake gasket
y
Poor carburetor O-ring
y
Vacuum hose crack
y
Spark plug fouled
y
Malfunction of CDI
y
Malfunction of AC generator
y
Malfunction of ignition coil
y
Open or short circuit in spark plug leads
y
Malfunction of main switch
y
Insufficient fuel in fuel tank
y
Fuel filter clogged
y
Restricted fuel tank vent
Good Abnormal
Good spark Poor
No air sucked Air sucked
Remove spark plug, install
spark plug into spark plug cap
and perform spark test against
engine ground
Fault condition
Probable causes
Check and adjustment
Check ignition timing
y
Malfunction of CDI
y
Malfunction of AC alternator
Normal Abnormal
No clogged Clogged
y
Cleaning