Toro service manual Replace Spark Plugs, inch 0.762 mm, Sand Pro 2020/3020/5020, Page 3, Engine

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	Engine
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.

Sand Pro 2020/3020/5020 Page 3 – 25 Engine