IGNITION SYSTEM
21
CS-2511WES
251Ws
3-8 Settingpoleshoeairgaps
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 ywheel (C) and ig-
nition coil shoes (D).
2. Rotate ywheel (C) until magnetic poles of y-
wheel face ignition coil shoes (D).
3. Hold ignition coil against ywheel (C) and tight-
en the bolts (A) (Refer to 3-7 Replacingignition
coil). After tightening bolts, remove Module air gap
gauge: 91004 (B) or feeler gauge.
NOTE: When the air gap is too narrow, contact
with ywheel may result. When the air gap is too
wide, spark is weak.
4. Reassemble all removed parts.
3-9 Inspectingyweelandkey
1. Inspect magnetic force of ywheel (A) using ux
meter, or screwdriver (B) as shown.
2. If magnetic force is weak, replace ywheel (A)
as follows.
3. Disconnect spark plug cap and remove spark
plug.
4. Install clean rope (C) in spark plug hole (D) to
stop crankshaft rotation.
NOTE: Do not use piston stopper to avoid piston
damage.
B
A
D
C
B
A
C
D
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