Spark Plug - Toro 520XI Service Manual

3.0144.014
2.0144.040
2.0144.011
5xi Series Tractor Service Manual
GASOLINE ENGINE
1. Drain the oil from the engine.
2. Remove the old filter and wipe the filter
adapter gasket surface.
3. Apply a thin coat of new oil to the rubber
gasket on the replacement filter.
4. Install the new filter to the filter adapter.
Turn the filter clockwise until the gasket
contacts the filter adapter, then tighten the
filter an additional 1/2 turn.
5. Fill the crankcase with the proper oil.
Service Interval/Specification
Kohler Engines
Type: Champion RC12YC (or equivalent)
Air Gap: 0.030 in (.76 mm)
Kawasaki Engines
Type: NGK BMR4A
Air Gap: .024 - .028 in (0.6 - 0.7 mm)
Install new spark plugs after every 100
operating hours/Kawasaki, 200 hours/Kohler.
Check the spark plugs after every 25 operating
hours. Make sure the air gap is correct before
installing the the spark plug.
If the insulator on the spark plug is light brown
or gray, the engine is running properly. A black
coating on the insulator indicates the air cleaner
may be dirty.
IMPORTANT: Never clean the spark plugs.
Always replace the spark plugs when it has a
black coating, worn electrodes, an oily film, or
cracks.
Changing

SPARK PLUG

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