Johnson J10RLSUR, Service Manual

Page: 106 / 229

104 FU
EL SYSTEM FUE
L
S
YSTE
M
TROUB
L
E CHE
CK CHA
R
T
FUEL SYSTEM TROUBLE CHECK CHART
ENGINE WILL NOT START
STARTS, WILL NOT IDLE
WILL NOT IDLE SLOWLY
SPITS AT IDLE, LEAN
ENGINE RICH AT IDLE
EXCESSIVE OIL USE
STALLS ON ACCELERATION
SURGES AT HIGH SPEED
RUNS RICH AT HIGH SPEED
LOSS OF W.O.T. RPM
CARBURETOR FUEL SPITBACK
IMPROPER STARTING PROCED
URES
CLOGGED FUEL FILTER POOR QUALITY OR OLD FUEL FUEL TANK VENT OR HOSE RESTRICTED RESTRICTED FUEL PICK-UP RESTRICTED FUEL SUPPLY SYSTEM FAULTY ANTI-SIPHON VALVE FUEL SYSTEM AIR LEAK
THROTTLE LINKAGE MISADJUSTED
THROTTLE CAM PICK-UP POINT MISADJUSTED
IDLE SPEED TOO SLOW
THROTTLE ARM STOP SCREW
MISADJUSTED
W.O.T. STOP S
CREW MISADJUSTED
THROTTLE CABLE MISADJUSTED FLOAT VALVE STUCK CLOSED FLOAT VALVE STUCK OPEN FLOAT SETTING INCORRECT FLOAT VALVE INSTALLED INCORRECTLY MANIFOLD GASKET LEAKING WARPED INTAKE MANIFOLD CARBURETOR BASE GASKE
T LEAKING
LEAF PLATE GASKET LEAKING RESTRICTED IDLE FUEL PASSAGE PLUGGED HIGH SPEED ORIFICE PLUGGED HIGH SPEED NOZZLE VENT INCORRECT ORIFICE SIZE PLUGGED FLOAT CHAMBER VENT BENT THROTTLE SHAFT OR VALVE RESTRICTED/MISRO
UTED FUEL
SUPPLY LINES
LEAF PLATES BENT, CHIPPED, OR BROKEN LEAF PLATE ASSEMBLY SCREWS LOOSE
FUEL TANK
AND FILTER
LINKAGE
ADJUSTMENT CARBURETOR
32CFTCENR
INTAKE
MANIFOLD
& LEAF PLATE
ASSEMBLY
USER