Shibaura ST450 Operator's Manual page 105

TROUBLE
Engine stops while operating
Engine overheats
Undesirable exhaust color
(black or light grey)
Undesirable exhaust color
(white or pale)
If you have any questions, contact your SHIBAURA dealer.
SECTION 3 – LUBRICATION AND MAINTENANCE
POSSIBLE CAUSE
Lack of fuel in tank
Clogged fuel filter
Air or water mixed in fuel system
Unsuitable fuel
Operator leaves the seat without
transmission range leaver in
neutral
Insufficient amount of coolant in
the radiator
Loose, worn, or broken fan belt
Radiator fins bent or clogged
Thermostat operating improperly
Insufficient amount of engine oil
Overload operation
Unsuitable fuel
Clogged air cleaner
Over loading
Excess engine oil
Improper lubricating oil viscosity
Unsuitable fuel
Fill fuel tank (See page 3-4)
Replace fuel filter
(See page 3-8)
Inspect fuel system for tightness
Bleed the fuel system
(See page 3-9, 3-10)
Replace fuel (See page 3-3)
Set in neutral position
(See page 2-1, 2-7)
Fill coolant to proper level
(See page 3-16, 3-117)
Check the radiator, radiator cap
and hoses for leaks or loose
connection
Adjust fan belt tension or
replace belt (See page 3-18)
Straighten out fin and clean fin,
radiator screen, hood screen
(See page 3-16)
Replace thermostat
(See page 3-18)
Fill to proper level
(See page 3-6)
Decrease load or shift to lower
gear
Replace fuel (See page 3-3)
Replace air cleaner
(See page 3-11, 3-12, 3-13)
Decrease load or shift to lower
gear
Drain oil to proper level
(See page 3-6)
Replace oil with specified
viscosity (See page 3-5)
Replace fuel (See page 3-3)
3-35
CORRECTION