Fuel Systems; System.testing; Fuel.fills - Four winns 318 VISTA Owner's Manual

I - 1 GASOLINE FUEL SYSTEMS
Gasoline.fuel.systems.used.in.Four.Winns
designed.to.meet.or.exceed.the.requirements.of.the.
US.Coast.Guard,.the.National.Marine.Manufacturers.
Association,.and.the.American.Boat.and.Yacht.Coun-
cil.in.effect.at.the.time.of.manufacture.
NOTICE
Use only clean, dry fuel of the type and grade
recommended by the engine manufacturer.
The use of incorrect or contaminated fuel can
cause engine malfunction and serious
damage. Engine damage resulting from the
use of a lower octane gasoline is considered
misuse of the engine and will void the engine
warranty. Refer to the section on Gasoline
Requirements in the engine manual for
information on octane specifications.
In.twin.engine.applications,.the.port.and.starboard.fuel.
tanks.are.located.forward.and.outboard.in.relationship.
to.their.respective.engine..See.Figure.I-1..The.capac-
ity.of.the.fuel.tank(s).may.be.found.on.our.website.at.
www.fourwinns.com.
The.318.Vista .models.are.equipped.with.twin.fuel.
®
tanks.and.come.with.a.manual.fuel.valve.system..
See.Figure.I-2..This.fuel.valve.system.allows.you.to.
manually.select.which.fuel.tank.you.want.your.engines.
to.draw.fuel.from..The.generator.(if.applicable).uses.a.
separate.fuel.pick-up..Please.see.Figure.I-8.at.the.end.
of.this.section.for.fuel.valve.operations.
Port
Fuel Tank
Figure I-1: Twin Fuel Tank Locations
Fuel Systems - Section I
.boats.are.
®
A. System Testing
All.gasoline.fuel.systems.have.been.factory.inspected.
and.pressure.tested.in.accordance.with.regulations..
in.effect.at.the.time.of.manufacture..Additionally,.each.
fuel.tank.must.pass.rigid.tests.and.inspections.per-
formed.by.the.fuel.tank.manufacturer.
Prior.to.taking.delivery,.it.is.important.that.a.full.
inspection.be.made.of.the.entire.fuel.system.by..
the.selling.dealer..An.entry.on.the.Four.Winns..
Pre-Delivery.Inspection.Form.portion.of.the.Warranty.
Registration.Card.will.attest.to.the.dealer's.perfor-
mance.of.this.service.
B. Fuel Fills
The fuel fill deck plates are located on the port and
starboard rear decks and are marked "GAS". See
Figure.I-3..Be.sure.to.utilize.the.proper.type.and.grade.
of.fuel.as.recommended.by.the.engine.manufacturer..
To.open,.insert.the.deck.plate.key.into.the.holes.on.
Starboard
Fuel Tank the.cap.and.rotate.counterclockwise..A.bead.chain.
connects.the.cap.to.body.to.help.prevent.loss.over-
board..Refer.to.Section.I-3.for.information.regarding.
fueling.instructions.

Fuel Systems

Figure I-2: Fuel Valve System
Fuel Fill
Fuel Vent
Figure I-3: Fuel Fill & Fuel Vent
Owner's Manual Page 9
Port & Stbd
Typical