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SPARK PLUG
The spark plug should be replaced each
year to ensure the engine starts easier and
runs better. Ignition timing is fixed and non-
adjustable.
1. Loosen 3 screws on cylinder cover.
2. Remove the cylinder cover.
3. Pull off the spark plug boot.
4. Remove spark plug from cylinder and
discard.
5. Replace with Champion RCJ- -7Y spark
plug and tighten securely with a 19 mm
socket wrench. Spark plug gap should
be 0,5 mm.
6. Reinstall the spark plug boot.
7. Reinstall the cylinder cover and 3
screws. Tighten securely.
CHAIN SHARPENING
WARNING
: Improper chain sharpen-
ing techniques and/or depth gauge mainte-
nance will increase the chance of kickback
which can result in serious injury.
WARNING
: Wear protective gloves
when handling chain. The chain is sharp and
can cut you even when it is not moving.
Conditions which indicate the need for chain
sharpening:
S Reduction in size of wood chips. The size
of the wood chip will decrease as the chain
gets duller until it becomes more like a
powder than a chip. Note that dead or
rotted wood will not produce a good chip.
S Saw cuts to one side or at an angle.
S Saw has to be forced through the cut.
Tools required:
S 3/16 inch (4,5 mm) diameter round file and
file holder
S Flat file
S Depth gauge tool
TO SHARPEN CHAIN:
1. Move ON/STOP switch to the STOP
position.
2. Check chain for proper tension. Adjust
chain tension if necessary.
3. Sharpen cutters.
S To sharpen the cutters, position the
file holder level (90° ) so that it rests
on the top edges of the cutter and
depth gauge.
NOTE:
The chain has both left and
right hand cutters.
File Holder
Cutter
S Align the 25° file holder marks paral-
25°
File Holder Line
S Sharpen cutters on one side of the
S File on the forward stroke only. Use 2
S Keep all cutters the same length
S File enough to remove any damage
Spark Plug
Same Length
S File chain to meet the specifications
25°
Too Much Hook Angle
WARNING
angle according to the manufacturer's specifi-
cations for the chain you are using. Improper
hook angle will increase the chance of kick-
back which can result in serious injury.
14
File
Depth Gauge
lel with the bar and to the center of the
chain.
Cutter
chain first. File from the inside of each
cutter to the outside. Then, turn the
chain saw around and repeat the pro-
cess for the other side of the chain.
or 3 strokes per cutting edge.
when filing.
to cutting edges (side plate and top
plate of cutter).
Remove Damage
All Cutters
Top Plate
as shown.
60°
Hook Angle
0,65 mm
Rounded
Corner
Right
Squared Off
Corner
Wrong
: Maintain the proper hook
90°
Cutter
Side Plate
60°
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