Pro Boat PRB2650 - Manual (Page 5)

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section 10: starting the engine (cont.)
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Pull-starting the Engine
With.an.assistant.holding.the.boat.to.the.boat.stand.and..
bracing.the.engine.with.one.hand,.pull.the.starting.cord.briskly.
several.times..Once.the.engine.fires.(begins.to.start),.open.the.
choke..Prolonged.choking.will.flood.the.engine.with.fuel..See.
Section.15:.Troubleshooting.Guide.to.correct.the.flooding.
condition..
Choking the Engine
Close.the.choke.by.rotating.the.small.yellow.tubing.extension..
This.is.not.necessary.if.the.engine.is.warm.
NOTE:.The.engine.is.water-cooled..Refrain.from.running.the.engine.without.proper.cooling.water.or.engine.damage.will.result..Carefully,.
place.the.boat.in.the.water.as.soon.as.possible.after.the.engine.has.been.started.
section 11: stopping the engine
Idle.the.boat.near.shore.and.press.the.kill.switch.located.through.
the.hole.in.the.hatch.as.shown.
section 1: Handling adjustments
Trim Tabs
On.smooth.water.conditions,.the.trim.tabs.may.be.bent.up.further.
or.removed.to.increase.top.speed.performance..Be.sure.to.reinstall.
the.trim.tab.mounting.bolts.to.keep.water.from.entering.the.boat..Be.
aware.that.the.boat.may.become.less.stable.and.may.“blow.over”.with.
the.increased.speed..
Propeller Trim Angle
You.may.also.adjust.the.propeller.strut.to.add.up.or.down.trim.to.the..
propeller.by.loosening.the.2.propeller.strut.bolts.and.sliding.the..
propeller.strut.up.to.increase.top-end.speed.(but.steering.response.will.
decrease)..Lowering.the.trim.angle.will.increase.handling.performance.
(but.may.cause.the.boat.to.over-steer.and.decrease.speed).
section 1: Cooling system
Water Pump
The.water.pump.is.operated.from.crankcase.pressure..Be.sure.that.
water.is.exiting.the.2.water.jackets.mounted.on.the.left.side.of.the.
boat.when.the.engine.is.running.and.the.boat.is.in.the.water..If.water.
does.not.stream.out.of.either.the.exhaust.or.cylinder.head.cooling.
ports,.immediately.stop.engine.operation.and.remove.obstructions.in.
the.lines.or.replace.broken.cooling.lines..
Hint:.To.test.each.cooling.line.for.obstructions.or.a.leak.in.the.cool-
ing.system,.place.a.piece.of.tubing.over.the.water.inlet.tube.in.front.
of.each.rudder.and.blow.into.the.tube..When.testing.for.obstructions.
in.the.cooling.system,.be.sure.to.isolate.each.system.by.pinching.the.
appropriate.water.lines..
Water-Cooled Cylinder Head and Exhaust Manifold
Cooling Jacket
The.exhaust.system.is.cooled.independently.from.the.cylinder.head..
See.photo.for.proper.cooling.line.routing..Do.not.alter.the.cooling.line.
routing.method.
Water Outlet
Tuned Pipe
Water-Cooled
Cylinder Head
Water Pump
Water Outlet
Zenoah G26M Engine
Tuned Pipe Fitting
Carburetor
Mounting Plate
Rudder
Pick-Up
Tube
Rudder
Pick-Up
Tube
Water-Cooled
Cylinder Head
Water Pump Carburetor
Tuned Pipe Fitting