MerCruiser 305 CID (5.0L) Service Manual page 141

SERVICE MANUAL NUMBER 24
b. On Engines with Thru-Transom Exhaust:
Exhaust hoses must be connected to exhaust elbows so that they do not restrict
the flow of discharge water from exhaust elbow. If hoses are connected incorrectly,
discharge water from exhaust elbow will not flow around entire inside diameter of
hose. This will cause a hot spot in the hose which may eventually burn through.
Correct
2. Connect battery cables to battery by FIRST connecting positive (+) battery cable
(usually red) to positive (+) battery terminal. Tighten clamp securely. Then, connect
negative (–) battery cable (usually black) to negative (–) battery terminal. Tighten clamp
securely.
NOTE: Spray terminals with a battery connection sealant to help retard corrosion.
Index
90-861327--1 OCTOBER 1999
NOTICE (Thru-TRANSOM EXHAUST)
Incorrect
MCM MODELS
72538
Page 2A-25