Troubleshooting Guide - GD Rapter RR BC 20-42.7 Original Owner's Manual

1. FAILURE TO START
Symptom
Spark
plug
normal
Fuel
system
normal
Ignition
system
normal
TROUBLE SHOOTING GUIDE
Probable cause
these is no fuel in tank
Fuel
system
abnormality
fuel filter obstruct
fuel is too dirty
there is water in fuel
Fuel
system
Fuel there is too much
normal
fuel in cylinder
mixture ratio is improper
spark plug fouled with oily
deposits
High
voltage Spark
wire plug spark plug insulation damage
spark
normal
spark gap is too large or small
high voltage wire breach
or break off
High voltage wire
spark abnormality
coil looseness
piston ring attrite
piston ring is broken
Compress
press is shortage piston ring cementation
spark plug looseness
conjoint surface of the
cylinder and crank cass leak
high voltage wire and spark
Compress
normal
plug contact badness stop switch
failure or short circuit
Remedy
add fuel in tank
clean fuel filter
instead fuel
instead fuel
tear down spark plug
and dry it
mixture proration
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
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