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14
T
ROUBLESHOOTING
S
YMPTOM
Engine fails to Start
Engine fires but
does not run
Engine starts but
slows down and
then stops
Engine starts,
speeds up, and
until then quits
Engine quits
when glow ignitor
is removed
In the event that none of the above procedures results in the engine run-
ning properly, contact our service departments for suggestions at:Horizon
Hobby, Inc. 4105 Fieldstone Road, Champaign, IL 61822
877-504-0233 (Mon-Fri 8:00-5:00 CST)
C
AUSE
Low voltage on starting
battery
Bad glow plug(s)
Insufficient priming
"Flooded" due to
excessive priming
Over primed
Mixture too rich
Mixture too lean
Mixture too rich
Incorrect glow plugs
Incorrect or bad fuel
C
OPRECTIVE
Replace/recharge the
starting battery
Inspect/Replace bad
glow plugs
Repeat priming proce-
dure
Disconnect battery,
remove glow plugs and
rotate propeller several
times to "clear"
cylinder(s)
Disconnect battery and
rotate propeller several
times to "clear"cylin-
der(s)
Close high speed needle
1/2 turn and start again.
Repeat engine is run-
ning smoothly.
Open high speed needle
valve 1/2 turn and start
again.Repeat until engine
is running smoothly.
Close high speed needle
valve 1/2 turn and
restart.
Change glow plugs
Change fuel
A
CTION
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