Tracker Off-Road 800SX Service Manual page 80

MF087B
MF088B
19. Using a new valve cover gasket, install the valve
cover and tighten to specifications.
20. Install spark plugs and torque to specifications; then
install spark plug wires, breather hose, and oil fill
plug.
21. Move the vehicle to an open/well ventilated area,
and run until warmed up (coolant fan cycling) and
check for leaks.
REMOVING, SERVICING, AND
INSTALLING CYLINDER HEAD
NOTE: The engine does not need to be removed

from the vehicle for this procedure.
1. Tilt the cargo box up.
2. Remove the driver and passenger rear inner fenders.
3. Disconnect the negative battery cable.
4. Remove the coolant cap; then drain coolant.
5. Disconnect the coolant hose (2) and the coolant
bypass tube (3) from the thermostat housing.
78
MF133A
6. Remove the cap screws securing the exhaust pipe to
the exhaust manifold and separate the exhaust pipe
from the manifold. Account for the gasket.
MOD549
7. Disconnect the fuel hose connector from the fuel rail;
then remove the P-clamp holding the fuel line to the
intake manifold.
MOD602
! WARNING
Fuel may be under pressure. Wrap a cloth around the
connector when disconnecting to prevent gasoline from
spraying out and creating a fire hazard. Always wear
safety glasses to prevent personal injury when discon-
necting any fluid lines.
8. Disconnect the coolant temperature sensor wire from
the coolant sensor (4); then mark the location of the
coil pack connectors to the coil pack; then disconnect
the coil pack connectors; then mark the location of
the spark plug wires to coil packs; then remove spark
plug wires; then remove the two cap screws and lock
nuts securing the coil packs to the cylinder head and
remove coil packs. Discard lock nuts. Inspect cap
screws and replace if damaged.