Yamaha 2009 WR250R Owner's Manual page 60

PERIODIC MAINTENANCE AND ADJUSTMENT
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2
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3
1. Bolt
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6. Remove the coolant reservoir cap.
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6
7
8
1. Coolant reservoir cap
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7. Drain the coolant from the coolant
reservoir by turning it upside down.
8. Install the coolant reservoir by
placing it in the original position,
and then installing the bolts.
9. Remove the coolant drain bolt to
drain the cooling system.
1. Coolant drain bolt
10. After the coolant is completely
1
drained, thoroughly flush the cool-
ing system with clean tap water.
11. Install the coolant drain bolt, and
then tighten it to the specified
torque.
TIP
Check the washer for damage and re-
place it if necessary.
Tightening torque:
Coolant drain bolt:
12. Pour the specified amount of the
1
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
7-15
recommended coolant into the ra-
diator and reservoir.
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol anti-
freeze containing corrosion inhibitors
for aluminum engines
Coolant quantity:
Radiator capacity (including all
routes):
0.90 L (0.95 US qt, 0.79 Imp.qt)
Coolant reservoir capacity (up to the
maximum level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)
13. Install the coolant reservoir cap.
14. Install the radiator cap.
15. Start the engine, let it idle for sev-
eral minutes, and then turn it off.
16. Remove the radiator cap to check
the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radia-
tor, and then install the radiator
cap and its retaining bolt.
17. Check the coolant level in the res-
ervoir. If necessary, remove the
coolant reservoir cap, add coolant
to the maximum level mark, and