unit.out.too.far,.your.boat.will.porpoise.or.the.propel-
ler.will.cavitate,.and.the.bow.will.slam.up.and.down.
on.the.water..Your.boat.is.trimmed.correctly.when.it.is.
just.short.of.porpoising.or.propeller.cavitation,.under.
ideal.running.conditions..
2... The.switch.controls.the.position.of.the.stern.drive...
Proper.trim.is.very.important.in.boating..
3... In.the.case.of.low.or.heavy.bow.attitude,.the.boat..
tends.to.“plow”.(Figure.T-3..The.lower.unit.is.
trimmed.too.far.under.or.forward..Trim.the.unit.UP.
(out).to.correct.this.situation..
Trim.your.boat.to.compensate.for.seas,.winds,..
or.uneven.loads..
4...
If.the.bow.is.too.high,.the.boat.tends.to.“porpoise”..
(Figure.T-5)..The.drive.unit.is.trimmed.up.or.out.
too.far..Trim.DN.(in).to.correct..
Head.Seas
Trim.drives.in.more.than.
usual..Use.tabs.to.keep.
bow.down.and.move.at..
a.slower.speed.
5...
A.good.practice.is.to.get.underway.(especially..
when.fully.loaded.or.pulling.a.skier).with.the.unit.
trimmed.all.the.way.DN.(under)..After.the.boat.is.
on.plane,.adjust.the.trim.out.slightly.to.obtain.the.
proper.bow.attitude.and.engine.speed..
Following.Seas
To.prevent.taking.sea-.
water.over.the.bow,.trim.
drives.out.and.keep.tabs.
up.to.keep.bow.up..
Listing.Due.to.Quar-
tering.Seas,.Beam.
Wind,.or.Uneven.Load starboard,.press.port.bow.
down.switch..If.listing.to.
Use.tabs.independently.to.
adjust.for.list..If.listing.to.
6...
Trim.also.affects.propeller.selection.and.fuel.ef-.
ficiency. All models should be “propped” to be in
the.upper.half.of.the.maximum.rpm.range.with.the.
boat.lightly.loaded.and.the.drive.trimmed.up.to.
maximum..
port,.press.starboard.bow.
down.switch.
This configuration allows the engine to operate
within.the.recommended.rpm.range.with.a.heavy.
load..
Remember.that.most.boats.react.very.slowly.to.trim.
tabs..Often.boat.owners.do.not.give.trim.tabs.time.to.
work..Press.the.trim.tab.switches.for.only.one.second.
at.a.time.and.then.allow.some.time.for.the.boat.to.
react..If.the.boat.is.still.listing.after.a.minute.or.two,.
press.the.trim.tab.switch.again.for.a.one.second.inter-
val..The.labels.on.the.trim.tab.switches.indicate.what.
you.want.your.boat.to.do,.not.what.you.want.the.tabs.
to.do..
.
The.power.unit.should.never.be.trimmed.up.to..
a.point.where.the.propeller.cavitates.(or.slips)..
A.rapid.increase.in.engine.rpm’s.is.evidence.of.
cavitation..If.this.occurs.accidentally.while.running.
at.full.throttle,.immediately.lower.the.drive.trim.and.
reduce.the.throttle.until.the.slipping.stops..If.nec-
essary,.have.your.dealer.reset.the.trim.limit.switch.
(if.provided).to.avoid.overtrimming.in.the.future..
It.is.a.good.idea.to.take.your.boat.out.onto.open.water.
shortly.after.you.get.it.and.experiment.with.the.trim.
tabs..After.you.get.your.boat.onto.plane,.set.the.tabs.
in.various.positions.and.note.how.your.boat.reacts..
This.will.give.you.a.feel.for.how.the.trim.tabs.work..
.
If.the.prop.slips.at.lower.planing.speeds,.the.drive..
may.be.trimmed.too.high..Immediately.lower.the.
drive.unit.until.the.prop.grabs.again.to.restore.ef-
ficiency.
It.is.possible.to.extend.the.cylinder.life.expectancy.on.
your.trim.tabs..To.do.this,.keep.the.cylinders.retracted. 7... .Trimming.out,.in.addition.to.raising.the.bow,.also.
while.at.dockside..Press.both.trim.tab.controls.down.
until.tabs.reach.their.full.up.position..
lifts.the.boat.higher,.gaining.speed.because.less.
hull.is.in.the.water..
B. Tilt/Trim Control Switches
8... The.trailering.position.of.some.stern.drives.is..
controlled.by.a.separate.switch.on.the.dash.switch.
panel.or.throttle/shift.control..Do.not.activate.this.
switch.while.engine.is.running..Doing.so.can.se-
verely.damage.the.lower.unit.and.engine..
NOTE:.Trim.refers.to.the.angle.of.the.lower.unit.in.
relation.to.the.bottom.of.the.boat..With.respect.to.trim-
ming,.the.words.in,.down,.under,.and.forward,.have.
the.same.meaning.as.do.up,.out,.and.aft..
NOTE:.Refer.to.the.control.instructions.regarding.the.
power.trim.controls.installed.on.your.boat..
1... .The.standard.trim.control.switch.is.located.on.the.
control.lever.handle..
Prelaunch and Underway - Section T
Owner’s Manual Page
| Categories | Four Winns Manuals, Four Winns Vista Manuals, Outboard Marine Corporation Manuals |
|---|---|
| Tags | Four Winns Horizon 180, Four Winns Horizon 183, Four Winns Horizon 190, Four Winns Horizon 200, Four Winns Horizon 203, Four Winns Horizon 210, Four Winns Horizon 220, Four Winns Horizon 240, Four Winns Horizon 260 |
| Model Year | 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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