17
Maintenance
TO PREVENT SERIOUS INJURY FROM
ACCIDENTAL STARTING TURN THE POWER
SWITCH OF THE ENGINE TO ITS “OFF” POSITION.
Wait for the engine to cool, and remove the spark plug wire
before performing any inspection, maintenance, or cleaning
procedures.
Spark Plug Maintenance:
1. Disconnect spark plug wire from end of plug. Clean out debris
from around the spark plug.
2. Using the spark plug wrench provided, remove the spark plug.
Inspect the spark plug. 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,
replace the spark plug.
3. When installing a new spark plug, adjust the plug’s gap to the
specification on the technical specification chart. Do not pry
against the electrode or the insulator, the spark plug can be
damaged (see Figure 12).
4. Install the new spark plug or the cleaned spark plug into the
engine. Gasket style spark plugs should be finger-tightened
until the gasket contacts the cylinder head, then turned about
1/2 to 2/3 more rotation. Non-gasket-style spark plugs should
be finger-tightened until the plug contacts the head, then
about 1/16 turn more.
!
WARNING
Figure 12
Spark Plug Gap
0.028”~ 0.031”
