Adjusting The Timing Plate - Yamaha E115A Service Manual

Adjusting the timing plate

NOTE:
Remove the all spark plugs and lock plate
before adjusting the timing plate.
1. Remove the manual starter or flywheel
cover.
2. Slowly turn the flywheel magnet clock-
wise, align the piston of the #1 cylinder at
the TDC.
3. Install the dial gauge 1 into the #1cylin-
der.
1
NOTE:
Set the dial gauge to "zero" position which is
more than 4 mm from TDC.
Dial gauge set 1 : 90890-01252
4. As look at the dial gauge, slightly turn the
flywheel counterclockwise to the speci-
fied position.
20
2
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5. Align the timing plate with the flywheel at
specified position and install the timing
plate 2.
NOTE:
When finish the adjusting of timing plate, fly-
wheel must be turn clockwise twice.
6. Start the engine, and then check the igni-
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tion timing once more.
7. If the ignition timing out of specification.
Replace the CDI unit.
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Cylinder #1 piston position (BTDC):
E115A, 115B:
3.33 mm (0.1311 in)
140B:
3.91 mm (0.1539 in)
Timing plate position:
E115A:
BTDC 23°
115B:
BTDC 25°
140B:
BTDC 22°
Crankcase
1
2
3
4
5
6
7
8
9
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