Fuel Demand Valve; Engine Oil Recommendations; Checking And Adding Engine Oil - Mercury 200 Verado FourStroke Operation And Maintenance Manual

Fuel Demand Valve

Some boat fuel systems incorporate a fuel demand valve between the fuel tank
and the engine and others do not. This engine can be operated with or without
a fuel demand valve.
The fuel demand valve has a manual release. The manual release can be used
(pushed in) to open (bypass) the valve in case of a fuel blockage in the valve.
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Engine Oil Recommendations

200–350 HP MODELS
Mercury 25W‑40 NMMA certified FC‑W Catalyst Compatible® Synthetic Blend
Marine Engine Oil is the preferred choice for general, all‑temperature use in all
200–350 HP Verado engines.
In lieu of the preferred grade oil, the following may be used (listed in the order
of preference):
• Mercury 25W40 Mineral Catalyst Compatible FC‑W® Oil
• 25W‑40 NMMA certified FC‑W® Marine Engine Oil

Checking and Adding Engine Oil

IMPORTANT: Do not overfill. Tilt the outboard out/up past vertical for
approximately one minute to allow trapped oil to drain back to the oil sump. The
outboard must be in a vertical (not tilted) position when checking engine oil. For
accurate readings, check oil only when engine is cold or after engine has not
run for at least an hour.
FUEL AND OIL
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Fuel demand valve ‑ installed in the
fuel hose between the fuel tank and
primer bulb
Manual release
Vent/water drain holes
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