17
EN
1. FAILURE TO START
Symptom
Probable cause
Remedy
Cylinder
compress
pressure
normal
Spark
plug
spark
normal
Fuel system abnormality
These is no fuel in tank
Fuel filter obstructed
Add fuel in tank
Clean fuel filter
Fuel
system
normal
Fuel
Fuel is too dirty
There is water in fuel
There is too much
Fuel in cylinder
Mixture ratio is
improper
Replace fuel
Replace fuel
Take down spark plug
and dry it
Mixture proration
Fuel
system
normal
High
voltage
wire
spark
normal
Park
plug
Spark plug fouled with oily
deposits
Spark plug insulation
damage spark gap is too
large orsmall
High voltage wire breach
or break off
Clean the oily deposits
replace spark plug
Adjust spark gap
0.6-0.7mm
Replace or tighten
High voltage wire spark
abnormality
Coil looseness
Tighten
Fuel
system
normal
Ignition
system
normal
Compression pressure
is inadequate
Piston ring attrite
Piston ring is broken
Piston ring cementation
Spark plug looseness
Conjoint surface of the
cylinder and crank cass
leak
Replace a new
Replace
Eliminate
Tighten
Eliminate
Compression normal
High voltage wire and
spark plug contact poor
Stop switch failure or short
circuit
Tighten the spark plug cap
Repair or replace
12. trouble shooting guide