KYMCO MX'ER 50 - Page 24

1. SPECIFICATIONS
1-23
MX’er 50
ENGINE STOPS IMMEDIATELY AFTER IT STARTS
Å Empty fuel tank
Ç Clogged float valve
É Clogged charcoal
canister
Ñ Clogged fuel filter
Ö Faulty auto fuel valve
Å Fouled spark plug
Ç Incorrect heat range
plug
Å Fouled spark plug
Ç Faulty CDI unit
É Faulty A.C. generator
Ñ Faulty ignition coil
Ö Broken or shorted high
tension wire
Ü Faulty ignition switch
Å Worn cylinder and
piston rings
Ç Blown cylinder head
gasket
É Flaws in cylinder head
Ñ Faulty reed valve
Ö Seized piston
Å Clogged carburetor jets
Å Faulty CDI unit or A.C.
generator
Ç A.C.G. flywheel not
aligned
Å Mixture too rich (turn
screw out)
Ç Mixture too lean (turn
screw in)
Check if fuel reaches
carburetor by
loosening drain screw.
Inspection/Adjustment
Symptom
Probable Cause
Fuel reaches
carburetor
Good spark
Remove spark plug
and install it into
spark plug cap to test
spark by connecting it
to engine ground.
Correct timing
Correctly adjusted
Plug not fouled or
discolored
Normal
compression
Not Clogged
Fuel does not
reach carburetor
Weak or inter-
mittent spark
Incorrect timing
Incorrectly adjusted
Plug fouled or
discolored
Abnormal
compression
Clogged
Test cylinder
compression (using a
compression gauge).
Check carburetor for
clogging.
Check ignition timing.
Check carburetor air
screw adjustment.
Remove spark plug
and install it into
spark plug cap to test
spark by connecting it
to engine ground.
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