Hudson 18539 - Engine Starting Problems

8
TROUBLE SHOOTING
Engine does not start or is difficult to start
Check for spark. The safest and easiest way is to use a spark tester.
PROBLEM CAUSE SOLUTION
NO SPARK
NORMAL
SPARK
SPARK
PLUG
MAGNETO
COMPRESSION
RATIO IS FINE
& FUELING
NORMALLY
FUELING IS
NORMAL BUT
COMPRESSING
RATIO IS BAD
NO FUELING
FROM
CARBURETOR
FIRING DEVICE WET
CARBON BUILD UP
ON THE SPARK PLUG
THE CLEARANCE
BETWEEN POLES OF
SPARK PLUG IS TOO
BIG OR TOO SMALL
THE INSULATION OF
SPARK PLUG DAMAGED
POLES BURNED
WIRE COVERING IS
DAMAGED
INSULATION OF COIL IS
BAD
WIRE OF COIL IS
BROKEN
ELECTRONIC FIRING
DEVICE IS DAMAGES
EXCESSIVE FUEL
BAD QUALITY FUEL,
MIXED W/WATER OR
DIRTY
CYLINDER AND PISTON
RING WORE AND TORE
SPARK PLUG IS
LOOSEN
NO FUEL IN FUEL TANK
FILTER NET DIRTY
AIR HOLE OF FUEL
TANK IS BLOCKED
DRY IT OUT
CLEAN THE CARBON
ADJUST THE GAP TO
0.024" - 0.028"
(0.6 - 0.7 mm)
CHANGE SPARK PLUG
CHANGE SPARK PLUG
CHANGE OR REMEDY
REPLACE
REPLACE
REPLACE
REDUCE THE FUEL
CHANGE THE FUEL
CHANGE CYLINDER
AND PISTON RING
TIGHTEN
FILL FUEL
CLEAN IT
CLEAN IT