Page 177 - REPOWER REFERENCE GUIDE (2020)

Manifolds, Elbows, and Risers for Wet Joint
e. Connect the instrument harness plug to the engine harness and install the bolt to secure the water‑separating fuel
filter bracket to exhaust manifold, if disconnected previously.

Starboard exhaust elbow sterndrive models
a - Bolt
c b - Shift plate
c - Exhaust elbow

b
a 31548
8. Port exhaust elbow:
a. Install the ECM drop‑down bracket, if equipped.
b. Install the ECM bracket and the ECM to the exhaust elbow.
c. Tighten securely.

Carbureted models
a - Knock module
b - Ignition module
c - Drop‑down bracket
c
b

a 31549

c MPI models
a - ECM
b - ECM bracket
c - Exhaust elbow

b

a

31550
9. Install the exhaust hoses and the cooling hoses.
10. Tighten the hose clamps securely.
11. Install any additional components removed during disassembly.
12. Connect the battery cables to the battery. Tighten securely.
NOTICE

Without sufficient cooling water, the engine, the water pump, and other components will overheat and suffer damage. Provide
a sufficient supply of water to the water inlets during operation.

90-8M0149179 eng NOVEMBER 2018 © 2019 Mercury Marine Page 7A-7