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14
Spark plug
Note:
Let the engine cool before unscrewing and removing the spark plug. Both the spark plug
and muffler become very hot after use. Check the spark plug before every season and replace it
if necessary.
1. Remove the spark plug cable from the spark plug. Do not
pull the cable but rather grip the spark plug cap and wiggle
it back and forth to loosen it.
2. Use a spark plug spanner to remove it from its socket.
3. Check the electrodes for any visible damage and clean with
a steel brush when necessary.
4. Make sure that the electrode gap is 0.6–0.8 mm. Special
tools for gapping (feeler gauges) are available for purchase
separately.
5. Try to screw the spark plug partway in by hand to make
sure the threads catch correctly. Tighten using a spark plug
spanner.
6. Washers on the new spark plug must be compressed
during installation. Tighten a ½ turn extra after the spark
plug is securely in place to compress the washer and
create a proper seal.
7. Turn a ¼ turn extra if you are using the existing spark plug.
Handy hint:
Thread a small piece of PVC hose to the spark
plug wire end to make it easier to access when it is time to
manually thread it in the socket.
0.6–0.8 mm
Replacing the scraper blade
• Unscrew the 4 bolts holding the scraper blade
and remove the blade.
• Attach the new blade. Make sure that all the bolt
heads are on top, inside the auger housing.
• Use only original parts or parts approved by
the retailer.
Changing the skid plates
• Remove the skid plates by unscrewing
the 2 bolts in each.
• Mount the new plates. Make sure that all the bolt
heads are on the inside of the auger housing.
• Use only original parts or parts approved by
the retailer.