Mercury 350 MAG MPI Horizon, Service Manual

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32
CC995
Starting, Shifting And Stopping
WARNING
Before starting engine, operate bilge blower for at least five minutes to remove any explosive fumes
from engine compartment. If boat is not equipped with a bilge blower, open engine hatch and leave
open while starting engine.
CAUTION
It is good practice to ventilate the engine compartment prior to servicing any engine components to
remove any fuel vapors which may cause difficulty breathing or be an irritant.
CAUTION
Observe the following:
•
Do not start engine without water being supplied to seawater pickup pump (to prevent pump or en-
gine damage).
•
Do not operate starter motor continuously for more than 30 seconds.
•
Never shift drive unit unless engine is at IDLE rpm.
Perform the following as appropriate:
1
Check all items listed in Operation Chart.
2
Perform any other necessary checks, as indicated by your dealer, or specified in your boat owner’s manual.
3
Place control handle in NEUTRAL.
4
Position throttle setting as follows:
A
COLD ENGINE - Leave in NEUTRAL/IDLE speed position.
B
WARM ENGINE - Leave in NEUTRAL/IDLE speed position.
C
FLOODED ENGINE - Turn ignition switch to ON position. Push the throttle only button and place the throttle
lever in the 50% position. Attempt to start engine. As soon as engine starts, return throttle to the IDLE position.
5
Turn ignition key to the START position. Release key when engine starts and allow switch to return to the
RUN position.
6
Check oil pressure gauge immediately after engine starts. If oil pressure is not within specified range (Refer
to Specifications), stop engine immediately and determine cause.
7
If engine is cold, operate engine for 1 or 2 minutes at fast idle (1000-1500 rpm).
8
After engine has warmed up, check water temperature gauge to ensure that engine temperature is not
abnormally high. If it is, stop engine immediately and determine cause.
9
Be sure charging system is functioning correctly.
10
Observe power package for fuel, oil, water and exhaust leaks.
11
To shift unit into gear, move control/shift lever with a firm, quick motion forward to shift into FORWARD gear,
or backward to shift into REVERSE gear. After shifting unit, advance throttle to desired setting.
12
To shift unit out of gear, move control/shift lever to NEUTRAL and allow engine to drop to IDLE speed. If
engine has been operating at a high speed for a long period of time, allow engine to cool by operating at IDLE
speed for 3 to 5 minutes.
13
Turn ignition key to OFF.