Troubleshooting - KYMCO BET & WIN 50 Manual

1
. GENERAL INFORMATION

TROUBLESHOOTING

ENGINE WILL NOT START OR IS HARD TO START
Inspection/Adjustment
Check if fuel reaches
carburetor by
loosening drain screw.
Remove spark plug
and install it into
spark plug cap to test
spark by connecting it
to engine ground.
Test cylinder
compression.
Start engine by follow-
ing normal starting
procedure.
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Symptom
Fuel reaches Fuel does not
carburetor reach carburetor
Weak or no spark
Spark jumps
Normal Low or no
compression compression
Engine does not Engine fires but
fire does not start
Wet spark plug
Dry spark plug
BET & WIN 50
Probable Cause
 Empty fuel tank
 Clogged float valve
 Clogged charcoal
canister
 Clogged fuel filter

Faulty auto fuel valve
 Faulty spark plug
 Fouled spark plug
 Faulty CDI unit

Faulty A.C. generator
 Broken or shorted
ignition coil

Broken or shorted
exciter coil
Faulty ignition switch
 Burned or worn
cylinder piston

Faulty reed valve
 Blown cylinder head
gasket
 Leaking crankcase
 Faulty crankcase oil
seal
 Incorrectly adjusted idle
speed
 Air leaking through
intake pipe

Incorrect ignition
timing
 Flooded carburetor
 Throttle valve
excessively open
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