Fuel Systems; System.testing; Fuel.fills - Four winns 348 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.
U.S..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.Figures.I1.and.I2..The.
capacity.of.the.fuel.tank(s).may.be.found.on.our.
website.at.www.fourwinns.com.
The.348.Vista .models.are.equipped.with.twin.fuel.
®
tanks.and.come.with.a.manual.fuel.valve.system...
This.fuel.valve.system.allows.you.to.manually.select.
which.fuel.tank.you.want.your.engines.to.draw.fuel.
from..The.generator.uses.a.separate.fuel.pick-up..
Please.see.Figure.I-8.at.the.end.of.this.section.for.fuel.
valve.operations.
Fuel Selector
Valves
Starboard
Engine
Figure I-1: Twin Fuel Tank Locations - Stern Drive
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
Fuel Fill
The fuel fill deck plates are located on the port and
starboard rear decks and are marked "GAS". Be sure
to.utilize.the.proper.type.and.grade.of.fuel.as.recom-
mended.by.the.engine.manufacturer..To.open,.insert.
the..deck.plate.key.into.the.holes.on.the.cap.and.
Fuel Vent
rotate.counterclockwise..A.bead.chain.connects.the.
cap.to.body.to.help.prevent.loss.overboard..Refer..
to.Section.I-3.for.information.regarding.fueling..
instructions.
Starboard Fuel Tank
(Port & Stbd Typical)
Note:
(Port Engine & Fuel Tank
Not Shown)
Fuel Selector
Valves
Figure I-2: Twin Fuel Tank Locations - Inboard
DO NOT confuse FUEL deck fill plate with
WATER or WASTE deck plates. Deck fill
plates are labeled according to the intended
use.

Fuel Systems

Fuel Fill
Fuel Vent
Starboard Fuel Tank
(Port & Stbd Typical)
Note:
(Port Fuel Tank Not Shown)
Owner's Manual Page 9