Scarab jet boat Owner's Manual download pdf (Page 26)

Owner’s Manual Page 24Boating Safety & Information - Section A

6. Be aware that cockpit and deck drains can be a

source of CO ingress into boats, especially boats

with cockpit or decks enclosed with canvas or

permanent boat structures.

L. Accumulation of Exhaust Gases -

Swim Platform

When the propulsion engine(s) or generator is run-

ning, CO is produced and may remain in the vicinity

of the exhaust outlet (including underwater exhaust

outlets).

1. Do not occupy aft lounging area(s) or swim

platform.

2. Do not swim under or around swim platform.

3. Do not swim in the vicinity of the exhaust outlet.

Refer to Figure A13.

Figure A13: Exhaust Gas Accumulation

at Swim Platform

M. Dangerous Activity -



Do not sit on, occupy or hang on any stern append-

ages (e.g., swim platforms, boarding ladders, etc.)

while underway. Do not body surf, commonly known



the boat. Do not tow persons in close proximity to the

stern of the boat. See Figure A14. This activity can

also increase the possibility of injury due to contact

with water or debris exiting the jet nozzle.

Figure A14: Exhaust Gas Accumulation-

Dangerous Activity

N. Ventilation of Accommodation (Occupied)

Spaces

Accommodation spaces need to be ventilated to in-

troduce fresh air into the spaces. Ventilation methods

(e.g., windows, hatches, doors, and blow ers) used to

accomplish this may, under certain conditions, bring

hazardous levels of CO into the occupied spaces.

Care should be taken to be aware of all prevailing

conditions when using these ventilating methods.

O. Running of Engine(s) in Idle

Engines running in idle exhaust carbon monoxide that

can accumulate near the hull of the boat. Do not stand

or swim near the engine exhaust or jet nozzle(s) when

engine(s) are idling or generator is running.

P. Altitude and Sea Conditions

Operation at altitudes greater than 5,000 feet con-



require adjustments to the ignition systems, fuel sys-

tems or the impeller.

1. Failure to make adjustments to ignition sys tems



cause an increase in CO production.

2. Heavy sea or out of trim conditions tend to load

engines resulting in reduced performance and

thereby increasing their CO production.

Q. Portable Generator Sets

Never use a portable generator on a boat.

Gasoline-powered portable generators are available

in the marine market place and are not an option

available through Scarab. 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 accom-

modation occupied space. Do not use gasoline-pow-

ered portable generators on Scarab jet boats.

R. Maintenance - Engine Performance



CO production. The following items are those con-

sidered to have the greatest effect on in creased CO



1. Fuel Systems - Fuel that is contaminated, stale or

incorrect octane number

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Scarab jet boat Owner's Manual Page 26

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