12 T R O U B L E S H O O T I N G
SYMPTOM CAUSE CORRECTIVE ACTION
Engine fails to Low voltage on Replace/recharge the
start starting battery starting battery
Bad glow plug(s) Inspect/replace bad glow plug
Insufficient priming Repeat priming procedure
“Flooded” due to Disconnect battery, remove the
excessive priming glow plugs, and rotate the
propeller several times to
“clear” the cylinder
Engine fires but Over primed Disconnect battery and rotate
does not run propeller several times to
“clear” cylinder
Engine starts but Mixture too rich Close high-speed needle valve
slows down and
1
/2 turn and start again. Repeat
then stops
until engine is running smoothly.
Engine starts, Mixture too lean Open high-speed needle valve
speeds up, and
1
/2 turn and start again. Repeat
then quits
until engine is running smoothly.
Engine quits Mixture too rich Close high-speed needle valve
when starter
1
/2 turn and restart
battery is
removed Incorrect glow plugs Change glow plugs
Incorrect or bad fuel Change fuel
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
217-355-9511 (Mon-Fri 8:00-5:00 CST)
Saito Single Cyl Manual 9-00 9/11/00 10:06 AM Page 14
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