Spark Plugs; Valve Clearance; Measurement - BRP 2995 Johnson Service Manual

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).
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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
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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.