Murray 11052x4NC, Instruction Book

Page: 18 / 72

MAINTENANCE
18
F–041306C
SPARK PLUG
Check the spark plug every 25 hours. Re-
place the spark plug if the electrodes are
pitted or burned or if the porcelain is
cracked.
1. Make sure the spark plug is clean.
Clean the spark plug by carefully scrap-
ing the electrodes (do not sand blast or
use a wire brush).
2. Check the spark plug gap with a feeler
gauge
. See “Product Specifications” for
the correct spark plug gap and replace-
ment spark plug .
3. Before installing the spark plug , coat
the threads lightly with oil for easy re-
moval. Tighten the spark plug to a torque
of 15 foot–pounds.
Figure 14
Spark Plug
Feeler Gauge
0.035”