Mercury 200 OptiMax Jet Drive, Service Manual, Page: 49 / 391

Jet Installation
Page 1D-6 90-8M0050731 MAY 2011
Some of these adverse effects are caused because the alcohol in the gasoline can absorb moisture from the air, resulting in a
separation of the water/alcohol from the gasoline in the fuel tank.
The fuel system components on Mercury engines will withstand up to 10% alcohol content in the gasoline. We do not know what
percentage of alcohol the boat's fuel system will withstand. The boat manufacturer must have specific recommendations on the
boat's fuel system components (fuel tanks, fuel lines, and fittings). Be aware that gasolines containing alcohol may increase:
•
Corrosion of metal parts
• Deterioration of rubber or plastic parts
• Fuel permeation through rubber fuel lines
• Difficulty starting and operating the engine
!
WARNING
Fuel leakage is a fire or explosion hazard, which can cause serious injury or death. Periodically inspect all fuel system
components for leaks, softening, hardening, swelling, or corrosion, particularly after storage. Any sign of leakage or deterioration
requires replacement before further engine operation.
Because of possible adverse effects of alcohol in gasoline, we recommend only alcohol‑free gasoline when possible. If the only
fuel available contains alcohol or if you do not know whether the fuel contains alcohol, inspect for leaks and abnormalities more
frequently.
IMPORTANT: When operating a Mercury engine on gasoline containing alcohol, do not store the gasoline in the fuel tank for long
periods. Whereas cars normally consume alcohol‑blend fuels before they can absorb enough moisture to cause trouble, boats
often sit idle long enough for phase separation to take place. In addition, internal corrosion may take place during storage if alcohol
has washed protective oil films from internal components.
Installation Requirements
Installation
IMPORTANT: Jet Drive is considered an inboard engine. The boat it is installed in must meet industry standards (ABYC, NMMA,
etc.), federal standards, and Coast Guard regulations for inboard engine installations.
Battery/Battery Cables
IMPORTANT: Boating industry standards (NMMA, ABYC, SAE, USCG, EUs, RCD, and so on), federal standards, and United
States Coast Guard regulations must be adhered to when installing the battery. Be sure the battery cable installation meets the
pull test requirements and that the positive battery terminal is properly insulated in accordance with regulations.
IMPORTANT: It is recommended (required in some states) that the battery be installed in an enclosed case. Refer to regulations
for your area.
IMPORTANT: Engine electrical system is negative (–) ground.
Selecting the Battery
!
CAUTION
Hex nuts must be used to secure battery leads to the battery posts to avoid loss of electrical power.
• Do not use deep cycle batteries. Engines must use a marine starting battery with 1000 MCA, 800 CCA, or 180 Ah.
• When connecting the engine battery, the hex nuts must be used to secure the battery leads to the battery posts. Tighten the
nuts to the specified torque.
Description Nm lb‑in. lb‑ft
Hex nuts 13.5 120