Cooling System - Yamaha MTN850-A 2017 Service Manual

5. Remove:
• Water pump drain bolt "1"
• Copper washer "2"
1 2
6. Drain:
• Coolant
(from the engine and radiator)
7. Install:
• Water pump drain bolt
• Copper washer
New
Water pump drain bolt
10 N·m (1.0 kgf·m, 7.2 lb·ft)
8. Install:
• Collars
• Coolant reservoir
• Coolant reservoir cover
• Coolant reservoir bolt
Coolant reservoir bolt
0.5 N·m (0.05 kgf·m, 0.36 lb·ft)
Coolant reservoir bolt
9 N·m (0.9 kgf·m, 6.5 lb·ft)
9. Fill:

• Cooling system

(with the specified amount of the recom-
mended coolant)
Recommended antifreeze
High-quality ethylene glycol anti-
freeze containing corrosion
inhibitors for aluminum engines
Mixing ratio
1:1 (antifreeze:water)
Radiator (including all routes)
1.93 L (2.04 US qt, 1.70 Imp.qt)
Coolant reservoir (up to the maxi-
mum level mark)
0.25 L (0.26 US qt, 0.22 Imp.qt)
Handling notes for coolant
Coolant is potentially harmful and should be
handled with special care.
PERIODIC MAINTENANCE
EWA13040
WARNING
• If coolant splashes in your eyes, thorough-
ly wash them with water and consult a doc-
tor.
• If coolant splashes on your clothes, quickly
wash it away with water and then with soap
and water.
• If coolant is swallowed, induce vomiting
and get immediate medical attention.
ECA21291
NOTICE
• Adding water instead of coolant dilutes the
antifreeze concentration of the coolant. If
water is used instead of coolant; check,
and if necessary, correct the antifreeze
concentration of the coolant.
• Use only distilled water. However, if dis-
tilled water is not available, soft water may
be used.
• If coolant comes into contact with painted
surfaces, immediately wash them with wa-
ter.
• Do not mix different types of antifreeze.
10.Install:
• Radiator cap stopper
• Radiator cap
• Radiator cap bolt
Radiator cap bolt
5 N·m (0.5 kgf·m, 3.6 lb·ft)
11.Fill:
• Coolant reservoir
(with the recommended coolant to the maxi-
mum level mark "a")
a
12.Install:
• Coolant reservoir cap
13.Start the engine, warm it up for several min-
utes, and then turn it off.
14.Check:
• Coolant level
Refer to "CHECKING THE COOLANT LEV-
3-28