36
COOLING SYSTEM
Gearcase Flushing Adapter
Cover auxiliary water inlet holes on the gearcase when a gearcase flushing
adapter is used to flush the outboard. If auxiliary water inlet holes on the gear-
case are not covered, water can drain from them, resulting in engine overheat.
To insure enough water travels to the powerhead from the water intakes, tempo-
rarily cover auxiliary water inlets as follows:
15 – 30 HP Models – Temporarily cover the two small auxiliary water inlet holes
on each side of the gearcase with waterproof tape.
150 – 300 HP Models (equipped with an M2-Type gearcase) – Temporarily
cover the six auxiliary water inlet holes on the front of the gearcase with water-
proof tape.
Be sure to remove waterproof tape from auxiliary water inlets when flushing is
complete.
15 – 30 HP Models
1. Auxiliary water inlets
150 – 300 HP Models (M2-Type Gearcase)
1. Auxiliary water inlets
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