Shindaiwa 68907-94311, Owner'S/Operator'S Manual

Page: 8 / 56

8
Adjusting Engine Idle Speed
IMPORTANT!
A clean and unrestricted airflow is essen
-
tial to your blower’s engine performance
and durability! Before attempting any
carburetor adjustments, inspect and clean
the engine air filter as described on page
10 of this manual.
IMPORTANT!
Blower tubes and the air cleaner must be
in place while adjusting engine idle! Engine
idle speed will also be affected if the blower
tubes are blocked or incorrectly installed!
Idle Increase
Idle Decrease
Idle
Adjustment
Screw
Figure 9
1.. Place.the.unit.on.the.ground.and.start.
the.engine,.then.allow.it.to.idle.-3..
minutes.until.warm.
NOTE:
Carburetor.fuel.mixture.adjustments.are.pre-
set.at.factory.on.units.with.emission.control.
systems.and.cannot.be.serviced.in.the.field.
.. If.a.tachometer.is.available,.the.engine.idle.
speed.should.be.final.adjusted.to.3000.
(
±
300)min
-1
.(rpm)..See.Figure.9.
WARNING!
Never operate the blower unless all
controls are properly installed and in
good working order. Never operate the
blower if the cylinder cover is missing
or damaged!
If The Engine Does Not Start–
Repeat.the.appropriate.starting.procedures.
for.warm.or.cold.engine..If.the.engine.still.
will.not.start,.follow.the.“Starting.a.Flooded.
Engine”.procedure.
Starting A Flooded Engine
1.. Disconnect.the.spark.plug.lead,.and.
remove.the.spark.plug.(see.page.11.for.
procedures).
.. If.the.spark.plug.is.fouled.or.is.soaked.
with.fuel,.clean.or.replace.the.plug.as.
required.
3.. With.the.spark.plug.removed,.open.the.
choke,.put.the.throttle.lever.in.the.full.
throttle.position,.then.clear.excess.fuel.
from.the.combustion.chamber.by.crank-
ing.the.engine.several.times.
4.. Install.and.tighten.the.spark.plug,.and.
reconnect.the.spark.plug.lead..
5.. Repeat.the.starting.procedures.for..a.
warm.engine.
6.. If.the.engine.still.fails.to.start.or.fire,.
refer.to.the.troubleshooting.flow.chart.
at.the.end.of.this.manual.
Throttle Lever
Figure 8
Stopping The Engine
1.. Cool.the.engine.by.allowing.it.to.run.at.
idle.for.–3.minutes.
.. Slide.the.ignition.switch.towards.the.
rear.to.“O”.(OFF)..See.Figure.8.
Ignition
Switch
OFF
Starting the Engine
(continued)
5.. Hold.the.blower.firmly.with.your.left.
hand.on.the.handle.
6.. Using.your.right.hand,.pull.the.starter.
handle.slowly.until.you.feel.the.starter.
engage..See.Figure.7..
Pull upward
rapidly
Figure 7
7.. As.the.starter.engages,.pull.the.starter.
handle.upward.rapidly.
8.. If.necessary,.repeat.Steps.6.and.7.until.
the.engine.starts.
When The Engine Starts–
1.. Open.the.choke.(if.it.is.not.already.
open).by.moving.the.choke.lever.down..
.. If.the.engine.does.not.continue.to.run,.
repeat.the.appropriate.starting.proce-
dures.for.a.cold.or.warm.engine..
3.. Operate.the.throttle.to.reduce.engine.to.
idle.speed.until.operating.temperature.is.
reached.(–3.minutes)..
.
The blower should
now be ready for use.
Figure 6
Full Throttle
Idle
4.. Slide.the.ignition.switch.to.the.“I”.(ON).
position,.then.depress.the.throttle.lever.
half.way.and.lock.throttle.by.moving.
throttle.lock.lever.halfway.down..See.
Figure.6.
Throttle
Lever
ON
Throttle
Lock
Lever
Ignition
Switch