Cooling System - Yamaha VK10A Owner's Manual

Periodic maintenance and adjustment
1. "H" level mark
2. "L" level mark
Recommended engine oil:
See page 75.
Oil quantity:
With oil filter cartridge replacement:
3.0 L (3.17 US qt, 2.64 Imp.qt)
Without oil filter cartridge replace-
ment:
2.8 L (2.96 US qt, 2.46 Imp.qt)
Total amount:
3.7 L (3.91 US qt, 3.26 Imp.qt)
17. Install and tighten the oil filler cap.
18. Start the engine, and then let it idle for
several minutes while checking it for oil
leakage. If oil is leaking, immediately turn
the engine off and make sure that the en-
gine oil drain bolt, oil tank drain bolt, cyl-
inder head cap, and the oil filler cap are
installed correctly.
19. Turn the engine off, and then connect the
oil level gauge coupler. NOTICE: If oil is
leaking or the oil level warning indica-
tor comes on when the engine is run-
ning, immediately turn the engine off
and have a Yamaha dealer check the
snowmobile. Continuing to operate
the engine under such conditions
could cause severe engine damage.
[ECS00471]
20. Install the bottom panel and the right side
cover, and then close the shroud.
50
ESU12025

Cooling system

The coolant level should be checked before
each ride. In addition, the cooling system
must be bled at the intervals specified in the
periodic maintenance and lubrication chart.
EWS00390
WARNING
Do not remove the radiator cap when the
engine is hot. Scalding hot fluid and steam
may be blown out under pressure, which
could cause serious injury.
When the engine has cooled, place a thick
rag or towel over the radiator cap, and
slowly rotate the cap counterclockwise to
the detent. This procedure allows any re-
sidual pressure to escape. When the hiss-
ing sound has stopped, press down on the
cap while turning counterclockwise and
remove it.
1. Radiator cap
To check the coolant level
1. Place the snowmobile on a level surface
and apply the parking brake.
2. Open the shroud.
3. Check the coolant level in the coolant
reservoir when the engine is cold. If the
coolant level is below the "LOW" mark,
remove the coolant reservoir cap and add
coolant until it reaches the "FULL" mark.
(See the following section "Replenishing
the coolant" for more details.) NOTICE: If