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Spark Plug Maintenance:
Disconnect Spark Plug Wire from end 1.
of plug. Clean out debris from around
Spark Plug.
Using the spark plug wrench provided, 2.
remove the Spark Plug.
Inspect the Spark Plug: 3.
If the electrode is oily, clean it using
a clean, dry rag. If the electrode has
deposits on it, polish it using emery
paper. If the white insulator is cracked
or chipped, the Spark Plug needs to be
replaced.
FIGURE o
0.028” ~ 0.031”
4. When installing a new Spark Plug, adjust
the Plug’s gap to the specication on the
Technical specication chart and in the
illustration below. Do not pry against the
electrode or the insulator, the Spark Plug
can be damaged. (See Figure o.)
Install the new Spark Plug or the cleaned 5.
Spark Plug into the Engine. Gasket-
style: Finger-tighten until the gasket
contacts the cylinder head, then about
1/2-2/3 turn more.
Non-gasket-style: Finger-tighten until the
plug contacts the head, then about 1/16
turn more.
cleaning, Maintenance, and lubrication Schedule: Engine
Note: This maintenance schedule is
intended solely as a general guide. If
performance decreases or if the Engine
operates unusually, check systems
immediately. The maintenance needs
of this Engine will differ depending on
factors such as temperature, air quality,
fuel quality, and other factors.
Note: These procedures are in addition to
the regular checks and maintenance
explained as part of the regular operation
of the Engine.
After Initial 25 operation hours:
Change unleaded gasoline and 2-cycle a.
oil fuel mixture.
Every 25 operation hours Thereafter:
Clean/replace Air Filter Element.a.
Inspect/clean Spark Plug.b.
Every 50 operation hours:
Change unleaded gasoline and 2-cycle a.
oil fuel mixture.
Every 100 operation hours:
Replace Spark Plug.a.
Replace Air Filter Element.b.
Note: All maintenance procedures scheduled
for 25, 50, and 100 operation hours
should be performed at least yearly.
Every 300 operation hours:
Clean Fuel Tank and Carburetor a.
assembly.
Clean carbon build-up from Combustion b.
Chamber.