3-53
ENG
TROUBLESHOOTING
ENGINE STARTS BUT STALLS
Check fuel level.
SUFFI-
CIENT
INSUFFI-
CIENT
Add.
Check if fuel cock is
clogged.
GOOD
NO GOOD
Clean.
Check if fuel pipe, fuel hose
and fuel pipe strainer are
clogged.
GOOD
NO GOOD
Clean.
• Check if carburetor
retaining nuts are loose.
• Check if there is air suc-
tion due to a damaged
carburetor joint or gas-
ket.
• Tighten the carbu-
retor bolts
securely.
• Replace carbure-
tor joint or gasket
with a new one.
GOOD
NO GOOD
Measure valve clearance.
GOOD
OUT OF
SPECIFICA-
TION
Adjust.
Check compression using
a compression gauge.
GOOD
OUT OF
SPECIFICA-
TION
Improperly tight-
ened cylinder head
Tighten securely.
Check if there are air gap
between TCI unit and fly-
wheel magneto.
GOOD
OUT OF
SPECIFICA-
TION
Adjust.
Check the condition of the throttle control
system. Refer to “THROTTLE CONTROL
SYSTEM”.
