2. Reduced power resulting from increased altitude
4. General
may require adjustments to propeller size.
a.
b.
Worn piston rings and valves
3.
Heavy sea or out of trim conditions tend to load
engines resulting in reduced performance and
thereby increasing their CO production.
Engine temperature - Cold running engines
increase CO production. Engine cooling water
system design and selection of thermostat(s)
are primary considerations affecting engine
operating temperature. Generally, an engine
produces less CO if it operates at a relatively
high temperature within manufacturer’s
specifications.
S. Portable Generator Sets
Never use a portable generator on a boat.
c.
d.
Exhaust Back-Pressure - Certain alterations
to the exhaust system may increase engine
exhaust back pressure and CO production.
Gasoline powered portable generators are available
in the marine market place and are not an option
available through Four Winns. Portable generators
will produce CO. These sets discharge their exhaust
products in locations which can lead to an increase
in the accumulation of carbon monoxide in the
accommodation (occupied) space. Do not use
gasoline powered portable generators on Four
Restricted engine room or compartment
ventilation
U. Maintenance - External Conditions
Winns boats.
®
External conditions that contribute to inefficient engine
performance can include:
T. Maintenance - Engine Performance
1.
2.
Fouled hull bottom
Efficient engine performance is vital to minimizing
CO production. The following items are those consid-
ered to have the greatest effect on increased CO
production:
Damaged and fouled running gear
(i.e., shaft, strut propeller, rudder and trim tabs)
3.
Incorrect selection of propeller size
1.
2.
Fuel Systems - Fuel that is contaminated, stale
or incorrect octane number
V. Maintenance - Exhaust System Integrity
Carburetors/Injectors
Gas tight integrity of exhaust systems must be
maintained to insure that leakage of CO within the
boat does not occur. Disassembly may be required
to carry out a thorough inspection. Repair or replace
components as indicated. Inspect the following:
a. Dirty or clogged flame arrester
b.
Malfunctioning automatic choke plate or faulty
adjustment of manual choke plate
c.
d.
Worn float needle valve and seat
High float level
1.
Gaskets at cylinder head connection
e. Incorrect idle mixture adjustment
2. Casting and pipe fittings in the dry section
f.
Dirty or worn injectors
3.
4.
5.
All joints
Hoses
3.
Ignition System
a.
b.
Fouled or worn spark plug.
Worn points or incorrect gap on points
Clamps
c. Shorted or opened circuit high tension spark
plug cables
6. Mufflers and their drain plugs
7.
Thru-hull fittings
d.
Incorrect ignition timing.
8.
Hangers and other supports
Boating Safety - Section B
Owner’s Manual Page
| Categories | Four Winns Manuals, Four Winns Vista Manuals, Outboard Marine Corporation Manuals |
|---|---|
| Tags | Four Winns Vista 258, Four Winns Vista 278 |
| Model Year | 2005, 2006, 2007, 2008 |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | Boats and Cruisers, Four Winns. For support contact your dealer at http://www.fourwinns.com/locate-dealer.aspx |
| Document File Type | |
| Publisher | fourwinns.com |
| Wikipedia's Page | Outboard Marine Corporation |
| Copyright | Attribution Non-commercial |
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