Exhaust Hose Connection; Throttle Cable Installation And Adjustment - Mercury MerCruiser MCM 454 Mag MPI Service Manual

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SERVICE MANUAL NUMBER 23

Exhaust Hose Connection

1. Connect exhaust system tubes and hoses using at least two hose clamps at each

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.

NOTE: Clamps are not shown.

MODELS EXCEPT 7.4L MPI

1. Place remote control handle(s) in neutral idle position.

IMPORTANT: Be sure that cable is routed to avoid sharp bends and/or contact with

moving parts. DO NOT fasten any items to throttle cable. Outer cable must be free to

move when cable is actuated.

2. On 8.2L MPI Model: Remove flame arrestor as follows:

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connection. Tighten hose clamps securely.

a. Disconnect crankcase ventilation hose.

b. Remove flame arrestor screws.

8.2L MPI Shown

Flame Arrestor

Crankcase Ventilation Hose

c. Remove flame arrestor.

MIE MODELS - HURTH TRANSMISSION

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