Eton VECTOR ST 250 - POOR PERFORMANCE AT LOW AND IDLE SPEEDS; POOR PERFORMANCE AT HIGH SPEED

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18.2 POOR PERFORMANCE AT LOW AND IDLE SPEEDS
N.G.
O.K.
CHECK carburetor N.G.
AIR SCREW ADJUSTMENT
O.K
CHECK FOR LEAKING N.G
INTAKE PIPE
O.K.
PERFORM SPARK TEST
WEEK OR INTERMITTENT SPARK
Possibility
★ Faulty CDI unit or pulse generator
★ Improperly adjusted air screw
★ Deteriorated insulator o-ring
★ Loose carburetor
★ Loose or disconnected ignition system wires
★ Faulty ,carbon or wet fouled spark plug
★ Faulty alternator
★ Faulty CDI unit
★ Faulty ignition switch
★ Faulty ignition coil
★ Faulty pulse generator
★ Broken or shorted spark plug wire
★ Faulty engine stop switch
18.3 POOR PERFORMANCE AT HIGH SPEED
N.G.
CHECK IGNITION TIMING
O.K.
CHECK FUEL TUBE AT FUEL FLOW RESTRICTED
CARBURETOR
FUEL FLOWS FREELY
REMOVE CARBURETOR CLOGGED
CHECK FOR CLOGGED JETS
NOT CLOGGED
CHECK AIR CLEANER DIRTY
FILTER ELEMENT
Possibility
★ Faulty CDI unit
★ Faulty pulse generator
★ Lack of fuel in tank
★ Clogged fuel line
★ Clogged fuel valve
★ Logged fuel tank breather hole
★ Clean with high pressure air gun
★
Clean the filter
C
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NITI
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N TIMIN
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