Engine Mechanical: 1D-29
• Position the piston ring gaps as shown. Before
inserting each piston into its cylinder, check that the
gaps are properly positioned.
Cylinder
• Install the dowel pins and cylinder gasket (1).
CAUTION
!
Replace the cylinder gasket (1) with a new
one.
• Apply molybdenum oil solution to the sliding surface
of the pistons.
M/O: Molybdenum oil (MOLYBDENUM OIL
SOLUTION)
• Install each special tool to the #2 and #3 pistons.
NOTE
Do not overtighten the bands, or piston
installation into the cylinders will be difficult.
Special tool
(A): 09916–74521 (Holder body)
(B): 09916–74550 (Band (Piston diam.: 73 –
85 mm))
• Apply engine oil to the sliding surface of the cylinder.
• Insert the #2 and #3 pistons into the cylinder.
NOTE
Some light resistance must be overcome to
lower the cylinder.
• After inserting the #2 and #3 pistons in place, insert
the #1 and #4 pistons in the same manner of the #2
and #3 pistons.
NOTE
When installing the cylinder, keep the cam
chain taut. The cam chain must not be caught
between cam drive sprocket and crankcase
when turning the crankshaft.
“B”: 2nd ring and lower side rail
“C”: Upper side rail
“D”: 1st ring and spacer
EX
IN
“C”
“B”
“D”
I718H1140051-01
1
I718H1140052-03
I718H1140053-02
(B)
(A)
I718H1140054-02
I718H1140055-03
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