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Maintenance
Apply engine oil to the cylinder bore, piston outer surface,
and piston rings.
Route the cam chain [1] and cam chain tensioner [2]
through the cylinder [3] and install the cylinder while
compressing the piston rings [4].
• Be careful not to damage the piston ring and cylinder
wall.
• Align the hole of the cylinder with the drive pin of the
crankcase.
[1]
[3]
Install the cam chain guide [1].
• Align the cam chain guide tabs with the grooves of the
cylinder.
• Align the cam chain guide end with the groove of the
crankcase.
Align
2-42
[2]
[4]
[1]
Align
Install the dowel pins [1] and a new gasket [2].
• Be careful not to drop the cam chain [3] and dowel
pins into the crankcase.
• Align the hole of the gasket with the pin of the cylinder.
[1]
[2]
[3]
Install the cylinder head [1] onto the cylinder.
• Be careful not to drop the cam chain [2] into the
crankcase.
• Align the hole of the cylinder head with the pin of the
cylinder.
Apply engine oil to the cylinder head bolt threads and
seating surface.
Install the cylinder head bolts [3] with the washers [4].
• Be careful not to drop the washers into the crankcase.
Tighten the cylinder head bolts in a crisscross pattern in
two or three steps to the specified torque.
TORQUE: 50 N·m (5.1 kgf·m, 37 lbf·ft)
Install and tighten the cylinder head 6 mm bolt [5].
[2]
Align
[3]/[4]
Align
[5]
[1]
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