Trouble Shooting; Troubleshooting For Failure In Starting The Engine - TGB BR8 Service Manual

1-8 TROUBLE SHOOTING

1-8-1 Troubleshooting for failure in starting the engine

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