Setting Pole Shoe Air Gaps; Inspecting Flyweel And Key - Echo CS-2511TES Service Manual

CS-2511TES
251Ts, 251TCs
3-8 Setting pole shoe air gaps
B
C
3-9 Inspecting flyweel and key
F
IGNITION SYSTEM
A
D
A
B
D
E
1. Loosen two bolts (A) and insert Module air gap
gauge: 91004 (B) or 0.3 - 0.4 mm (0.012 - 0.016
in) thick feeler gauge between flywheel (C) and ig-
nition coil shoes (D).
2. Rotate flywheel (C) until magnetic poles of fly-
wheel face ignition coil shoes (D).
3. Hold ignition coil against flywheel (C) and tight-
en the bolts (A) (Refer to "3-7 Replacing ignition
coil"). After tightening bolts, remove Module air gap
gauge: 91004 (B) or feeler gauge.
NOTE: When air gap is too narrow, contact with
flywheel may result. When the air gap is too wide,
spark is weak.
4. Reassemble all removed parts.
1. Inspect magnetic force of flywheel (A) using flux
meter, or screwdriver (B) as shown.
2. If magnetic force is weak, replace flywheel (A)
as follows.
3. Open cap cover (C). Disconnect spark plug cap
and remove spark plug.
4. Install clean rope (D) in spark plug hole (E) to
stop crankshaft rotation.
C
NOTE: Do not use piston stopper to avoid piston
damage.
5. Remove nut (F) by rotating counterclockwise.
NOTE: Do not use power tool to remove nut (F).
Otherwise, piston damage may occur.
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