Checking the Spark Plug
1. Look at the center of the spark plug(s)
( Figure 30 ). If y ou see light bro wn or g ra y on
the insulator , the engine is operating properly .
A blac k coating on the insulator usually means
the air cleaner is dir ty .
Important: Nev er clean the spar k
plug(s). Al w ays r eplace the spar k plug(s)
when it has a black coating , w or n
electr odes, an oil y film, or cracks.
2. Chec k the g ap betw een the center and side
electrodes ( Figure 30 ). Bend the side electrode
( Figure 30 ) if the g ap is not cor rect.
Figure 30
1. Center electrode insulator
3. Air gap (not to scale)
2. Side electrode
Installing the Spark Plug(s)
1. Install the spark plug(s). Mak e sure that the
air g ap is set cor rectly .
2. Tighten the spark plug(s) to 11 ft.-lb . (15 N·m).
3. Push the wire(s) onto the spark plug(s)
( Figure 29 ).
Servicing the Battery
Warning
CALIFORNIA
Pr oposition 65 W ar ning
Batter y posts, ter minals, and r elated
accessories contain lead and lead
compounds, chemicals kno wn to the State of
Calif or nia to cause cancer and r epr oducti v e
har m. W ash hands after handling .
Chec k the electrolyte lev el in the batter y ev er y
25 hours . Alw a ys k ee p the batter y clean and fully
c harg ed. Use a paper to w el to clean the batter y
case . If the batter y ter minals are cor roded, clean
them with a solution of four par ts w ater and one
par t baking soda. Apply a light coating of g rease
to the batter y ter minals to prev ent cor rosion.
V oltag e: 12 v
Removing the Battery
Batter y ter minals or metal tools could shor t
a gainst metal tractor components causing
spar ks. Spar ks can cause the batter y gasses
to explode, r esulting in per sonal injur y .
• W hen r emo ving or installing the batter y ,
do not allo w the batter y ter minals to
touch an y metal par ts of the tractor .
• Do not allo w metal tools to shor t betw een
the batter y ter minals and metal par ts of
the tractor .
1. Diseng ag e the PTO and mo v e the control
lev ers to the neutral loc k ed position and apply
the parking brak e .
2. Stop the engine , remo v e the k ey , and w ait for
all mo ving par ts to stop before lea ving the
operating position.
3. Tip the seat forw ard to see the batter y .
4. Disconnect the neg ati v e (blac k) g round cable
from the batter y post ( Figure 31 ).
Incor r ect batter y ca ble r outing could
dama ge the tractor and ca bles causing
spar ks. Spar ks can cause the batter y
gasses to explode, r esulting in per sonal
injur y .
• Al w ays disconnect the negati v e
(black) batter y ca ble bef or e
disconnecting the positi v e (r ed)
ca ble.
• Al w ays connect the positi v e (r ed)
batter y ca ble bef or e connecting the
negati v e (black) ca ble.
27
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