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MerCruiser Sterndrive 4.3 MPI User Manual

MerCruiser Sterndrive 4.3 MPI
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Section 3 - On The Water
Page 48 90-864195070 JUNE 2007
NOTICE
Failure to provide sufficient cooling water will damage the water pump and cause the
engine to overheat. Provide a sufficient supply of water at the water inlets during
operation.
!
WARNING
Explosive fumes contained in the engine compartment can cause serious injury or death
from fire or explosion. Before starting the engine, operate the bilge blower or vent the
engine compartment for at least five minutes.
NOTE: MerCruiser DTS models are equipped with SmartStart. The SmartStart feature
incorporates push button starting. Rather than holding the start button or key switch to start
the engine and then releasing it when the engine starts, SmartStart completely controls
the starting process. When the start button is pushed, the DTS system signals the engine
PCM to start the engine. If the engine does not start, the starting process times out after a
few seconds or when the engine reaches 400 RPM. Attempting to start the engine with the
engine already running will turn the engine off.
3. Turn ignition key to "RUN" position.
4. Turn the ignition key switch to the "START" position then release, or depress the start/
stop button and release. If the engine is cold, allow the engine to operate at idle for
6‑10 minutes or until the engine temperature reaches 60 °C (140 °F).
5. If the engine does not start after three attempts:
a. Push the throttle‑only button and position the remote control handle or throttle
lever to the 1/4 throttle position.
b. Turn the ignition key to "start." Release key when the engine starts and allow the
switch to return to the "on" position.
6. If the engine does not start after step 5:
a. Move the remote control handle.throttle lever to the full throttle position, then return
to 1/4 throttle.
b. Turn the ignition key to "start." Release key when the engine starts and allow the
switch to return to the "on" position.
7. Inspect the power package for fuel, oil, water, and exhaust leaks.
8. Move the control handle with a firm, quick motion forward to shift to forward gear, or
backward to shift to reverse. After shifting, advance throttle to desired setting.
NOTICE
Shifting into gear at engine speeds above idle will damage the gearcase. Shifting into
gear when the engine is not running can cause misalign the clutch, preventing proper
shifting. Always shift the gearcase into gear when the engine is operating at idle. If you
must shift while the engine is not operating, rotate the propeller shaft in the appropriate
direction during shifting.
STOPPING THE ENGINE
1. Move the remote control handle to neutral/idle and allow the engine to slow to idle
speed. If engine has been operated at high speed for a long period of time, allow the
engine to cool at idle speed for 3 to 5 minutes.
2. The engine can be stopped by any one of the following 4 methods:
a. Move the ignition key switch to the "ACCESSORY" or "OFF" position. The engine
will stop and the control system will be deactivated.

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MerCruiser Sterndrive 4.3 MPI Specifications

General IconGeneral
BrandMerCruiser
ModelSterndrive 4.3 MPI
CategoryEngine
LanguageEnglish

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