TGB BF8 - Trouble Shooting; Troubleshooting for Failure in Starting the Engine

19
1-8 TROUBLE SHOOTING
1-8-1 Troubleshooting for failure in starting the engine
b
a c
Does not work
Works
Check if the battery is
properly charged
Check if the starting gear and the
speeding clutch of the starting
motor suffer critical wear, if yes,
replace them
Bright light
Dim light or
light off
Check the
solenoid switch
of the starting
motor for noise
during work
Charge the battery or
replace it. In case of poor
charging, in addition to
recharging, check the
charging system of the
p
ower
p
lant for failure.
No noise
Noise
a. Poor
contact of
starting
switch
b. Starting
relay
breaks or
in short
circuit
c. Loose
contact or
wiring
Check the starting
gear and speeding
gear of the starting
motor for abnormal
engagement.
Poo
r
Fai
r
Correct the
engagement
of the
starting
motor with
the speeding
clutch.
Replacement
of new
starting motor
and check for
work.
Engine does not start
Analysis of potential causes
Check if the crank shaft works
Does not work
works
Check if the startin
g
motor works
Check RPM
Poor
(
too slow
)
Fai
r
Check battery charging
and contact of pins
Loosen the carburetor
leakage screw to check
for inlet of fuel.
Fai
r
Poo
r
Check for existence
of water or other
impurities in the
carburetor buoyant
Check
for fuel
in the
fuel tank
Fai
r
Poo
r
Check for fuel
spill in the
carburetor
Clean the
carburetor
and the
fuel filter
Poo
r
Fair
Repair or
replace
new
buoyant
and needle
valve
Check skips
in spark
l
No
skip
Ski
p
Refer to
1-8-3 No Skip
in Spark
Plugs for
checking
Poo
r
Fai
r
Recharge the battery
and be sure the pin is
properly secured.(In
case of poor
charging, proceed
with a new charging
and check the
charging system of
the power plant for
failure.
)
Check the
starting motor
and the switch
Poo
r
Fair
Repair
or
replace
with
new
ones
Check
the
engine
inside
(piston,
bearing
and
others)
for
failure
With
fuel
No fuel
Check the fuel
filter and the
tubing
Add in
designated
fuel
Poo
r
Fair
Clean fuel
filter and fuel
tubing or
replacement
Check fuel tank
ventilation
tubing for
obstruction
See page 17