KYMCO ZX/SCOUT 50 User Manual

2. GENERAL INFORMATION
2-16
ZX / SCOUT
TROUBLESHOOTING
ENGINE WILL NOT START OR IS HARD TO START
c Empty fuel tank
d Clogged float valve
e Clogged fuel filter
f Faulty auto fuel valve
c Faulty spark plug
d Fouled spark plug
e Faulty CDI unit
f Faulty A.C. generator
g Broken or shorted ignition coil
h Broken or shorted exciter coil
iFaulty ignition switch
c Burned or worn cylinder
piston
d Faulty reed valve
e Blown cylinder head gasket
f Leaking crankcase
g Faulty crankcase oil seal
c Incorrectly adjusted idle speed
d Air leaking through intake
pipe
e Incorrect ignition timing
c Flooded carburetor
d Throttle valve excessively
open
c Faulty auto bystarter
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.
Inspection/Adjustment
Fuel reaches
carburetor
Spark jumps
Dry spark plug
Not clogged
Normal
compression
Engine does not
fire
Fuel does not
reach carburetor
Weak or no spark
Wet spark plug
Clogged
Low or no
compression
Engine fires but
does not start
Test cylinder
compression.
Start engine by
follow-ing normal
startin
g
p
rocedure.
Wait for 30 minutes and
then remove the
carbu-retor auto choke
circuit hose and blow
the hose with mouth.
Remove spark plug and
inspect again.
Probable Cause
Symptom

KYMCO ZX/SCOUT 50 Specifications

General

Brand	KYMCO
Model	ZX/SCOUT 50
Category	Scooter
Language	English