MAINTENANCE
SPARK PLUGS
SPARK PLUGS
Spark plugs should
be
removed and examined
periodically. Replace worn, fouled or damaged
spark
plugs.
•
Remove spark plugs and inspect condition.
• Set spark plug gap
on
new, replacement spark
plugs.
• Apply
Electrical Grease to the ribbed portion
of
the spark plug ceramic and to the opening
of
the spark plug cover to prevent corrosion.
Recommended spark
plug and gap setting:
•
NGK
BKR6E @ 0.030 in.
(0
.8 mm).
Tighten spark
plugs 20
ft
. Ibs. (27 N·m).
56
004793
VALVE CLEARANCE
Measurement
Remove side covers. Refer to side cover
Removal and Installation on
p.
180.
Remove recoil starter. Refer to starter REMOVAL
on
p.
219.
Remove spark plugs.
Disconnect the fuel hose from fuel pump.
Remove six screws and cylinder head cover.
1. Fuel hose
004794
2. Fuel pump
3.
Cylinder head cover
Rotate the flywheel clockwise to bring each piston
to
Top
Dead Center (TDC)
on
compression stroke.
Align each PUNCH mark on cam pulley with
INDEX mark on cylinder head block.
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