Toro Sand Pro 5020 - Manual (Page 45)

Replace Spark Plugs
Replace spark plugs after every 800 operating hours or
yearly, which ever occurs first. Recommended air gap is
0.030 inch (0.762 mm). Use a Champion RC 12YC
spark plug or equivalent.
NOTE: A spark plug usually lasts a long time. However,
remove. Check spark plugs whenever the engine mal-
functions.
IMPORTANT: A cracked, fouled, dirty, or otherwise
malfunctioning spark plug must be replaced. Do not
sand blast, scrape, or clean electrodes by using a
wire brush because grit may be released from the
plug and fall into the cylinder. The result is usually
a damaged engine.
1. Clean area around spark plugs so foreign matter
cannot fall into cylinder when spark plug is removed.
2. Pull spark plug wires off spark plugs. Remove plugs
from cylinder head.
3. Check condition of side electrode, center electrode,
and center electrode insulator. Make sure there is no
damage.
0.030 inch
0.762 mm
Figure 42
4. Set air gap between the center and side of the elec-
trodes at 0.030 inch (0.762 mm). Install correctly
gapped spark plug with gasket seal. Tighten spark plug
to 200 in–lb (230 kg–cm). If torque wrench is not used,
tighten plug firmly.
Engine
Sand Pro 2020/3020/5020 Page 3 – 25 Engine