118 TROUBLE SHOOTING
TROUBLE SHOOTING
If the machine does not show the desired performance, or when trouble arises, refer to the table below and undertake
appropriate measures.
Trouble Cause Countermeasure
Engine
Starting difficulties
Fuel is too viscous.
* Check fuel tank and filter.
* Remove impurities and water.
* If necessary, replace filter and fuel.
Air or water in the fuel system
* Remove water from the fuel tank.
* Check fuel pipe joint bolts and nuts for looseness.
* Purging of the fuel system (for fuel filter and supply
pump, see "Bleeding the fuel system" in "SERVICE
AS REQUIRED" in "PERIODIC SERVICE" section.)
Fuse is blown out.
* Check the fuse and replace it with a same-capacity
one as required.
Oil viscosity is too high the
engine runs sluggishly in winter.
* Use the engine block heater (option).
Battery is almost dead;
insufficient compression.
* Recharge or replace battery.
Insufficient engine
power
Low fuel level * Check fuel and add if necessary.
Clogged air cleaner * Clean the air cleaner element.
Engine suddenly
stops.
Low fuel level
* Check fuel and add if necessary.
* Purge the fuel system.
Abnormal exhaust
gas color
Poor fuel * Use high quality fuel.
Too much engine oil * Drain engine oil to prescribed oil level.
Water
temperature
in red zone
(Overheating)
Damaged seal of the water
pump
* Replace.
Worn or torn V-belt * Adjust or replace.
Thermostat is damaged. * Replace.
Coolant level too low * Fill to prescribed level.
Radiator grill or fins are clogged. * Clean.
Coolant is contaminated with
rust from the cylinder head or
crank case.
* Replace coolant fluid and add anti-rust.
Damaged radiator cap
(Evaporation)
* Replace.
Corroded coolant pipes * Clean.
Continuous operation under full
load
* Reduce load.
Cylinder head gasket is
damaged (Coolant loss).
* Replace.
Engine oil level too low * Fill to prescribed level.
Maladjustment of fuel injection * Readjust ignition timing.
Use of poor fuel * Purge and use prescribed fuel.
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