Yamaha RAPTOR YFM660R Owner's Manual page 288

1. Hose
1. Flexible
1. Manguera
6. Disconnect the hose on the coolant reser-
voir side, and then drain the coolant from
the coolant reservoir.
7. After draining the coolant, thoroughly
flush the cooling system with clean tap
water.
8. Replace the coolant drain bolt washer if it
is damaged, and then tighten the coolant
drain bolt to the specified torque.
Tightening torque:
Coolant drain bolt:
10 Nm (1.0 m·kg)
9. Install the coolant reservoir hose.
10. Pour the recommended coolant into the
radiator until it is full.
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