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Troubleshooting - Saito FG-57T Instruction Manual

Twin-cylinder gasoline four-stroke engine.
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Troubleshooting

Generally speaking, there are very few things that will keep today's modern
gas engines from starting. To that end, make sure you're using good quality
"fresh" fuel, you have a fully charged ignition battery, and good spark plugs
installed. Should the engine fail to start after these items are verified, refer to
the troubleshooting chart below.
SYMPTOM
Engine fails to
start
Engine fires but
does not run
Engine starts but
slows down and
then stops
Engine starts,
speeds up, and
then quits
Rough idle
In the event that none of the above procedures results in the engine running
properly, contact our service department for suggestions:
Horizon Service Center
4105 Fieldstone Road
Champaign, Illinois 61822
877-504-0233 (Mon–Fri 8:00–5:00 CST)
CAUSE
Low voltage on
ignition battery
Bad spark plug(s)
Insufficient priming
"Flooded" due to
excessive priming
Over-primed
Mixture too rich
Mixture too lean
Plug
T R O U B L E S H O O T I N G
CORRECTIVE ACTION
Replace/recharge the
ignition battery
Inspect/replace bad spark plug
Repeat priming procedure
Disconnect ignition battery,
remove the spark plugs, and
rotate the propeller several
times to "clear" the cylinder
Disconnect ignition battery and
rotate propeller several times to
"clear" cylinder
Close high-speed needle valve
1
/
turn and start again. Repeat
4
until engine is running smoothly
Open high-speed needle valve
/
turn and start again. Repeat
1
4
until engine is running smoothly
Change plug type
13

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