Pro Boat PRB2900T User Manual
Page 10
10
Section 5: Starting the Pro Boat .18 Engine
Water-Cooled Engine
Because.the.Pro.Boat..18.engine.is.water-cooled.
and.not.air-cooled,.make.sure.that.you.do.not.
run.the.engine.for.an.extended.amount.of.time.
outside.of.the.water..Continuously.monitor.
the.water.outlet.when.the.boat.is.running.to.
make.sure.that.the.water.is.reaching.the.engine.
head..If.the.water.does.not.reach.the.head.to.
cool.it,.the.engine.will.overheat.and.fail..This.
could.cause.permanent.damage.to.the.engine.
Precision Rotary Carburetor
The.Pro.Boat..18.engine.comes.equipped.with.
the.Pro.Boat.Precision.Rotary.Carburetor..Each.
Precision.Rotary.Carburetor.is.pre-adjusted.at.
the.factory..This.setting.should.be.approximately.
2
1
⁄
2
.turns.open.for.the.high-speed.and.2
1
⁄
2
.turns.
open.for.the.low-speed.needle..This.should.
give.you.a.slightly.“rich”.mixture.of.fuel.to.the.
engine..This.setting.is.the.safest.way.to.break.
in.your.engine..For.further.details.regarding.the.
Precision.Rotatry.Carburetor,.please.consult.
Section.2.of.the.Pro.Boat..18.instruction.manual.
Hand-Held Starter
m
.1..Fully.charge.a.7.2V.sub-C.battery.pack.
and.install.it.in.the.starter.as.shown.
m
.2..Slide.the.starting.wand.(which.is.stored.
inside.the.battery.cover).into.the.end.of.the.
starter,.then.replace.the.battery.cover.
Richer
High-Speed.
Needle.Valve
Leaner
Low-Speed.
Needle.Valve
Higher.Idle
Idle.Adjustment.
Screw