1996 Mercury Force 25 HP Service Manual 90-830894 895, Page 69Get this manual
Test Run Procedure While priming fuel system with primer bulb prior to starting engine, inspect all fuel line connections and components for gasoline leaksRepair any fuel leaks BEFORE starting outboard
CAUTION
When engine is started, IMMEDIATELY check that water pump is operatingOperation of water pump is indicated by water discharging from "tell tale" While test running outboard, check powerhead assembly for leaks andor unusual noisesMake any repairs BEFORE placing outboard in service