1. FAILURE TO START
symptom
spark
plug
spark
cylinder
normal
compress
pressure
normal
fuel
system
normal
fuel
ignition
system
system
normal
normal
TROUBLESHOOTING GUIDE
fuel
these is no fuel in tank
system
fuel filter obstruct
abnormality
fuel is too dirty
fuel
there is water in fuel
system
fuel
there is too much
normal
fuel in cylinder
high
spark plug fouled with oily
voltage
spark
deposits
wire
plug
spark plug insulation damage
spark
spark gap is too large or small
normal
high
voltage
high voltage wire breach
wire
or break off
spark
coil looseness
abnormality
piston ring attrite
compress
piston ring is braked
press
piston ring cementation
is
spark plug looseness
shortage
conjoint surface of the
cylinder and crank cass leak
high voltage wire and spark
plug contact badness
compress
stop switch failure or short
normal
circuit
probable cause
remedy
add fuel in tank
clean fuel filter
instead fuel
instead fuel
tear down spark plug
and dry it
clean the oily deposits
replace spark plug
adjust spark gap 0.6~0.7mm
replace or tighten
tighten
replace a new
replace
eliminate
tighten
eliminate
tighten the spark plug cap
repair or replace