19
Fuel strainer clogged
Clean.
Fuel pipe clogged
Clean.
Suction insufficient
Make sufficient.
Strainer clogged
Clean.
Carburetor out of order
Disassemble and check.
C.D.I. module defective
Remove and replace.
Ignition coil defective
Remove and replace.
Wire connection defective
Reconnect.
High-tension cord connection
Repair as necessary.
defective
Switch is grounded
Switch on.
Insulator cracked
Replace plug.
Spark gap incorrect
Adjust.
Covered with carbon
Clean or replace.
Fouled with fuel
Clean or replace.
Starting procedures incorrect
Start correctly.
Low and high speed needle
Readjust.
setting too lean
Metering lever spring too strong
Readjust
Fuel pump diaphram defective
Replace.
Fuel passage clogged with dust
Disassemble and clean.
Fuel leaking from fixing
Retighten all screws.
surfaces of carburetor
Air valve, fuel tank cap
Replace or clean.
does not work normally
Fuel pump does not operate
Check impulse drilling.
Fuel inlet needle valve
Clean.
clogged with dust
Metering lever spring not placed
Correct.
in dent of lever
This is because fuel
mixture is too rich.
Muffler sticky
Start the engine several
with fuel
times with choke shutter
fully open and run at fast
idle until engine does not
smoke.
Bearing damaged
Disassemble and replace.
Piston and/or cylinder seized
Disassemble and replace.
Crankshaft worn
Disassemble and replace.
Crankshaft contacting
Disassemble and replace.
crankcase
Fuel is not
reaching
carburetor
Starting procedures
correct
Accelera-
tion and
low speed
function
defective
No spark at high
tension cord end
No spark at plug
Fuel is not
reaching
cylinder
Fuei is reaching cylinder
There is spark at plug
There is spark at high
tension cord end
Fuel does
not keep
running
Carburetor
overflow
Engine does
not crank
Table 1
Engine cranks
Engine does not start (or, is difficult to start)
There is fuel in the tank
Fuel is reaching carburetor
