Snowmobile Polaris IQ (2007-2008 year). Manual - part 39

5.34

Engine and Cooling Systems

12. Disconnect the ignition coil connections and EV solenoid

from the ECU harness on CFI models.

13. Disconnect the EV solenoid  from the ECU harness.

14. Disconnect the EV vent lines from the EV base  and secure

the vent lines out of the way.

15. Remove the drive belt, driven and drive clutches. See

Chapter 6.

16. Remove the recoil rope from the handle and route rope

through the guide on the chassis brace and secure the recoil
rope by tying a knot  so that it does not go into the recoil
housing.

17. Drain the coolant from the engine into a suitable container.

18. Remove all coolant hoses from the coolant bottle and

secure the loose hoses out of the way for engine removal.

19. Remove the four right hand chassis brace fasteners and

remove the brace from the chassis.

20. Drain the oil from oil tank.

21. Remove the oil tank fasteners that hold the top of the oil

tank to the chassis. 

22. Disconnect the oil supply line from the oil tank, located at

the bottom portion of the oil tank. Plug and secure the loose

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Engine and Cooling Systems

5

oil line so that it can come out with the engine.

23. Remove the engine isolator and rear torque stop  located on

the left hand side of the engine where equipped.

24. Remove the four engine mounting fasteners located on the

engine straps.

25. On CFI models, remove the Schrader valve cover located

under the steering hoop, and depressurize the fuel rail. See
“Fuel Rail Bleeding” on page 4.20.

26. Using the fuel line disconnection tool (PN PS-47152) (20),

separate the fuel filter and the fuel return line.

27. Secure the loose fuel lines out of the way for engine

removal.

NOTE: A helper will be needed for the following
steps.

28. Lift engine out of chassis and carefully place engine on

shock tower brace.

29. While holding the engine remove the throttle bodies by

loosening up the intake boot clamps and separating the
throttle bodies from the intake boots.

30. Remove the cable located in the center of the throttle

bodies.

31. Remove the oil cable lock nut from the threads on the cable

housing.

32. Remove the throttle cable from the oil pump bracket.

600

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Engine and Cooling Systems

33. Remove the oil cable from the oil pump lever by holding

the pump open and rotating the cable and keeper to the slot
in the pump arm.

34. Remove the cable from the oil pump bracket.

35. Remove the engine from the chassis.

36. Inspect the motor mounts and replace if needed. 

Engine Installation (Typical)

1.

Make sure that you have the engine assembled in the state
that it was when it was removed. This includes all the
coolant hoses, oil lines, and electrical wires.

2.

Fill oil lines with 2 stroke engine oil when assembling.

3.

Clean the oil residue and debris out of the engine
compartment.

4.

To assure a smooth transition of the engine into the engine
compartment, secure all loose hoses that are inside the
engine compartment.

NOTE: You may need a helper with the installation
of the throttle and oil cables.

5.

Place the engine on the shock tower brace.

6.

With the throttle body or carburetor rack separated from the
intake adapters, route the throttle cable behind the fuel rail,
or under the carburetor rack and insert the throttle cable into
the throttle pulley located in the center of the throttle
bodies.

7.

Insert the throttle body into the adapters and tighten the
clamps in the orientation as shown below.

8.

Adjust the throttle cable adjuster nut so that you have the
correct throttle free play. 

9.

Place the oil cable into the oil pump arm. The oil pump arm
has a slot in the back to slide the cable through for
installation. The plastic end of the throttle cable is inserted
so that the large flat is facing the engine and the small end
is facing the out side.

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Engine and Cooling Systems

5

10. Using a 10mm open end wrench tighten the lock nut while

holding the other nut with a 10mm open end wrench. Make
sure that the oil cable angle is tilted slightly toward the
engine.

11. Thread on the adjuster nut and adjust the oil pump and

adjust the oil pump. 

12. Carefully place the engine into the engine compartment and

line up the engine mount studs with the engine straps on the
engine. 

NOTE:  Make sure that all hoses, lines and wires are
not pinched or interfere with installation.

13. Route the oil supply line from the engine through the hose

guide.

14. Install the oil bottle and hook up the supply line. Open and

slide the hose clamp onto the hose and oil bottle fittings.

15. Secure the oil bottle to the chassis by installing the two torx

fasteners located at the top of the bottle.

16. Connect the oil sender (Yellow and Purple wires) to the

chassis connection (Purple and Brown wires).

17. Connect all the coolant hoses.

18. Place panduit straps in the locations shown.

19. If applicable, place the coolant hose from the throttle bodies

to the coolant bottle.

20. Secure the hose clamp over all coolant hose and fittings.