Table 4-3. Troubleshooting
Trouble
Possible cause
Remedy
Engine fails to start.
1.
Fuel tank empty.
Fill up tank and vent fuel
system.
2.
Fuel filter choked
Renew fuel filter element,
in winter by paraffin
Use winter-grade fuel.
clouding.
3.
Fuel lines leaky.
Check all fuel lines for
tightness.
4.
Battery.
Inspect the electrical system.
If the battery requires recharg
ing follow all applicable safety
precautions and the battery
charger manufacturer's inst-
ructions. Never use a battery
charger without these instruc-
tions. If the battery does
not recharge, replace the
battery.
Units With Maintenance-Free
Batteries: Inspect the elect-
rical system. If the trouble
is isolated to the battery,
replace the battery.
Jump start the engine employ-
ing approved safety practices
and booster jump starting in-
structions provided in para-
graph 4-12.
Engine difficult to start.
1.
Battery output low,
Have battery tested, clean
battery terminals
terminals, tighten and coat
loose or oxidized
with acid-free grease; crank
causing starting motor
engine smartly by hand.
to run slowly; in win-
ter, oil too viscous.
2.
In winter especially,
Use a grade of motor oil to
grade of motor oil
suit the temperature condi-
used is too viscous.
tions.
3.
Inadequate fuel supply
Renew fuel filter, evacuate
Blocking of fuel sys-
air, check fuel line connec-
tern by paraffin cloud-
tions for tightness.
Use
ing in winter.
winter grade fuel.
4-31
