Mercury Optimax User Manual page 114

1. The water pressure tube is coiled and attached on the side of
the engine. Cut the cable tie and route the water pressure tube
out through the grommet.
a
a - Water pressure tube
2. Remove the plug from the coupler and make the connection.
A barb fitting (22‑859731) can be installed for larger diameter
hose connection.
a
c
a - Plug
b - Coupler
OUTBOARD INSTALLATION
b
c - Barb fitting (22‑859731)
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