Liquid Cooling System - Tracker Off-Road 800SX Service Manual

Liquid Cooling System

NOTE: Use a good quality, biodegradable glycol-

based, automotive-type antifreeze. When filling the
cooling system, use a 60/40 coolant/water mixture or
one which will satisfy the coldest anticipated weather
conditions of the area in accordance with the coolant
manufacturer's recommendations.
! WARNING
Never check the coolant level when the engine is hot or
the cooling system is under pressure.
CAUTION
After operating the vehicle for the initial 5-10 minutes,
stop the engine, allow the engine to cool down, and
check the coolant level. Add coolant as necessary.
NOTE: Debris in the engine compartment or

packed between the cooling fins of the radiator can
reduce cooling capability. Using a garden hose, wash
the radiator to remove any debris preventing air flow.
CAUTION
It is not recommended to use a pressure washer to
clean the radiator core. The pressure may bend or flat-
ten the fins causing restricted air flow, and electrical
components on the radiator could be damaged. Use
only a garden hose with spray nozzle at normal tap
pressure.
Always maintain the coolant level at the cold fill line of
the coolant reservoir.
Checking Coolant
1. Lift the hood by turning the 1/4-turn fasteners
located at the rear of the hood. Remove the hood by
sliding it toward the rear of the vehicle and out of the
slots in the grille.
MOD044A
2. Inspect the coolant level cold. The level shouldn't be
lower than the cold full line. When it's at operating
temperature, the coolant level may be above the cold
full line.
MOD043
NOTE: If you cannot see any coolant in the reser-

voir, inspect the cooling system for leaks. If no leaks
are present, add coolant using the bleed procedure
below.
Bleeding Cooling System
While the cooling system is being filled, air pockets may
develop; therefore, make sure the cooling system is prop-
erly bled, with no trapped air in the system.
1. Slowly loosen the plug from the top of the thermostat
housing above the drive clutch, allowing trapped air
to escape.
MOD588
2. When pure coolant (no air) flows from the bleed
hole, tighten the bleed plug and tighten securely.
3. Fill the cooling system to the cold fill line of the res-
ervoir. Run the engine until the radiator fan engages
and disengages after the initial fill; then shut off the
engine and recheck coolant level once cool.
 NOTE: Use a good quality, biodegradable glycol-
based, automotive-type antifreeze.
RADIATOR
Removing
1. Remove the hood; then remove the two cap screws
securing the inner portion of the front fenders and the
grille.
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