Periodic maintenance and adjustment
73
4.
Install the right upper cover, and then in-
stall the top cover (PZ50RT / PZ50GT /
PZ50MT) or close the shroud (PZ50VT /
PZ50MP).
Bleeding the cooling system
The cooling system must be bled if the cool-
ant reservoir becomes empty, if air can be
seen in the cooling system, or if there is a
cooling system leak. Consult a Yamaha deal-
er.
NOTICE
ECS00500
Operating the engine with an improperly
bled cooling system can cause overheat-
ing and severe engine damage.
Replenishing the coolant
1.
Place the snowmobile on a level surface
and apply the parking brake.
2.
Remove the top cover (PZ50RT /
PZ50GT / PZ50MT) or open the shroud
(PZ50VT / PZ50MP), and then remove
the right upper cover. (See page 60 for
the procedures.)
3.
Remove the coolant reservoir cap, add
the recommended coolant until it reaches
the “COLD LEVEL” mark, and then install
the cap.
4.
Start the engine, allow it to idle for several
minutes, and then turn it off.
5.
Check for any coolant leakage. If coolant
is leaking, check for the cause.
TIP
If you find any leaks, consult a Yamaha deal-
er.
6.
Fill the coolant reservoir with coolant until
it reaches the “COLD LEVEL” mark.
7.
Install the right upper cover, and then in-
stall the top cover (PZ50RT / PZ50GT /
PZ50MT) or close the shroud (PZ50VT /
PZ50MP).
1. “COLD LEVEL” mark
2. Coolant reservoir cap
Recommended antifreeze:
High-quality ethylene glycol antifreeze
containing corrosion inhibitors
Antifreeze and water mixing ratio:
3:2
Total amount:
PZ50GT 3.60 L (3.81 US qt,
3.17 Imp.qt)
PZ50MP 3.70 L (3.91 US qt,
3.26 Imp.qt)
PZ50MT 3.60 L (3.81 US qt,
3.17 Imp.qt)
PZ50RT 3.60 L (3.81 US qt,
3.17 Imp.qt)
PZ50VT 3.70 L (3.91 US qt,
3.26 Imp.qt)
U8GKS6E0.book Page 73 Tuesday, April 17, 2012 8:48 AM
