L. Cabin Appliances
1. Fuel Systems - Fuel that is contaminated, stale or
incorrect octane number.
Boats having fuel burning appliances in accommodation
areas should be provided with adequate ventilation and 2. Carburetors/Injectors
maintained to function properly.
a. Dirty or clogged flame arrester.
M. Air Conditioning
b. Malfunctioning automatic choke plate or faulty
adjustment of manual choke plate.
It may be possible for carbon monoxide to be brought into
the air conditioned space by the air conditioner. If in-
stalled, please refer to the air conditioner manufacturer’s
literature for additional information.
c. Worn float needle valve and seat.
d. High float level.
N. Ventilation of Accommodation Spaces
e. Incorrect idle mixture adjustment.
Accommodation spaces need to be ventilated to intro-
duce fresh air into the spaces. Ventilation method; e.g.
windows, hatches, doors, and blowers; used to accom-
f.
Dirty or worn injectors.
plish this may, under certain conditions, bring hazardous 3. Ignition System
levelsofCOintotheaccommodationspaces. Careshould
be taken to be aware of all prevailing conditions when us-
ing these ventilating methods.
a.
Fouled or worn spark plugs.
b.
Worn points or incorrect gap on points.
O. Altitude and Sea Conditions
c. Shortedoropenedcircuithightensionsparkplug
cables.
Changes in altitude greater than 5,000 feet contribute to
inefficientengineperformanceandmayrequireadjustments
to the ignition systems, fuel systems, or changing the
propeller’s size.
d.
Incorrect ignition timing.
4.
General
1.
Failure to make adjustments to ignition systems, fuel
systems, and propeller size may cause an increase
in CO production.
a.
Worn piston rings and valves.
b. Engine temperature - Cold running engines in-
crease CO production. Engine cooling water
system design and selection of thermostat(s)
are primary considerations affecting engine op-
erating temperature. Generally, an engine pro-
duces less CO if it operates at a relatively high
temperaturewithinmanufacturer’sspecifications.
2.
Heavy sea conditions tend to load engines resulting
in reduced performance and thereby increasing their
COproduction.
P. Portable Generator Sets
Gasoline powered portable generator are available in the
marinemarketplaceandisnotanoptionavailablethrough
Four Winns. The portable generator will produce CO.
These sets discharge their exhaust products in locations
which can lead to an increase in the accumulation of car-
bon monoxide in the accommodation space. This equip-
ment is not recommended for use on Four Winns boats.
c. Exhaust Back-Pressure - Certain alterations to
the exhaust system may increase engine ex-
haust back pressure and CO production.
d. Restrictedengineroomorcompartmentventila-
tion.
Q. Maintenance - Engine Performance
R. Maintenance - External Conditions
EfficientengineperformanceisvitaltominimizingCOpro- External conditions that contribute to inefficient engine
duction. Thefollowingitemsarethoseconsideredtohave performanceare:
the greatest effect on increased CO production:
Vista Owners Manual
10/93
Section H
Page 6
| Categories | Four Winns Manuals, Outboard Marine Corporation Manuals |
|---|---|
| Model Year | 1998, 1999 |
| 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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