Mercury 25 EFI Service Manual page 303

Cooling System
Powerhead
Section 4D - Cooling System
Table of Contents
Cooling System Specifications.......................................... 4D-2 Thermostat.........................................................................4D-3
Cooling System Description...............................................4D-2 Thermostat Measurement Test.................................. 4D-3
Water Flow Diagram.......................................................... 4D-3
4
D
90-8M0105568 eng MARCH 2016 © 2016 Mercury Marine Page 4D-1