700 Series Lawn Tractor
174
General maintenance tips
BEFORE EACH USE
• Check engine oil level
• Check air filter and pre cleaner
• Inspect for build up of debris around engine cooling fins and air cowlings
• Inspect around hood and dash louvers for any debris buildup
Inspect the battery terminals and clean them if needed every 10 hours of operation.
The spark plug(s)
The spark plug(s) should be checked, cleaned and re-
gapped and replaced as specified by the engine manufac-
turer.
When checking the spark plug(s), a dry tan coating on
the plug/s indicates the proper fuel/air mixture.A dry, light
colored residue on the plugs is a sign the engine is running
lean. Check the fuel mixture and adjust the carburetor.If
there is a thick, wet, black residue on the plug the engine
is running rich. Check the fuel mixture and adjust the car
-
buretor.
1. To remove/replace the spark plug(s):
1a. Remove the spark plug wire(s).
See Figure 9.1.
NOTE: Do not use metal pliers on spark plug
wire(s). Damage to the wire can result.
1b. Remove the spark plug(s) with the appropriate
spark plug socket.
See Figure 9.2.
1c. Clean the Spark plug(s) with carburetor
cleaner or replace them with the spark plug(s)
suggested by the engine manufacturer.
NOTE: Do not clean the spark plug(s) mechanically
(sand blasting or scraping). This will damage
the insulator.
1d. Gap the electrodes to 0.030” (0.76mm).
1e. Thread the spark plug(s) into the spark plug
hole(s).
1f. Tighten the spark plug(s) to a torque specified
by the engine manufacturer.
NOTE: Refer to engine manufacturer’s service
manual for more detailed instructions.
1g. Push the spark plug wire(s) onto the spark plug(s) until they snap into place.
Figure 9.1
Figure 9.2
spark plug socket
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www.mymowerparts.com
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