Craftsman 536.886331 Owner's Manual Page 26

10 horsepower 29" dual stage 120v. electric start snow thrower.
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SERVICE AND ADJUSTMENTS
TO ADJUST OR REPLACE
THE SPARK PLUG
If you have difficultystarting your snow thrower, you may
need to adjust or replace the spark plug. Follow the
instructionsbelow.
Replace the spark plug ifelectrodes are pittedor burned or
if the porcelain is cracked.
TO ADJUST:
Clean the spark plug by carefully scraping electrodes
(do not sand blast or use a wire brush).
Be sure the spark plug is clean and free of foreign
matedal. Check electrodes gap (See FIG. 18) with a
wire feeler gauge and reset the gap to .030 inch if
necessary.
TO REPLACE:
If you need a new spark plug, use only the proper
replacement spark plug (See page 4).
Set the gap to .030.
Before installingthe spark plug, coat itsthreads lightly
with oil or grease to insure easy removal.
Tighten the plug firmly into the engine.
If a torque wrench isavailable, torque the plug to 18 to
23 It - Ibs.
.030 GAP
FIG. 18

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