Yamaha XZ550RJ 1982 Owner's Manual page 137

1. Radiator cap I. Bouchon de radiateur
2. Radiator cover 2. Cache de radiateur
1 .
Drain bolt
I . Boulon de vidange 1. Perno de dranaje
-125-
2. Coolant draining procedure
a.
ENGINE
1) Place an open container under the
engine.
2) Remove the radiator cover and
radiator cap.
3) Remove the drain bolts (two) from
each cylinder and the bottom of the
water pump cover. Drain the
coolant.