2-3
SECTION 2: IGNITION
GROUND WIRE ROUTING
Figure 2-6. Installing Ignition coil
ADJUST IGNITION COIL AIR GAP:
1. Rotate flywheel until magnet is aligned with ignition coil
laminations.
2. Place 0.20-.30 mm (.008"-.012") thickness, non-magnetic gauge
between magnet and ignition coil laminations, Figure 2-7.
3. Loosen mounting screws so magnet will pull ignition coil against
thickness gauge.
a. Torque screws to 4.75 Nm (40 in. lbs.).
0.20-0.30mm SHIM
GROUND WIRE TERMINAL
SOCKET
WRENCH
Figure 2-7. Adjusting Air Gap
4. Rotate flywheel to remove thickness gauge.
5. Repeat for second ignition coil.
Note: Route ignition coil ground wire under breather tube and away
from the flywheel (see Figure 2-9).
FLYWHEEL
REMOVE FLYWHEEL:
1. Remove two screws that attach fan and fan retainer to
flywheel.
2. Remove fan retainer and fan.
3. Loosen flywheel nut until it is flush with end of crankshaft threads
(Figure 2-8.)
4. Install flywheel puller.
5. Tighten puller screws equally until flywheel loosens, Figure 2-9.
6. Remove puller, nut, washer and flywheel.
Figure 2-8. Removing Flywheel Nut
*
Caution: Flywheel puller bolts may damage lighting coil if turned
in too far.
*
Caution: DO NOT strike flywheel with a hard object or a metal
tool as this may cause flywheel to shatter in operation. Always
use approved flywheel removal tools.
INSPECT FLYWHEEL KEY, KEYWAYS, FLYWHEEL AND
CRANKSHAFT:
Check flywheel key for damage. Check flywheel for cracks or keyway
damage. Also check crankshaft keyways and taper for damage, Figure
2-10. Replace crankshaft, if damaged.
2
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