Engine Mechanical: 1D-32
4) Remove the dowel pins and cylinder base gasket
(3).
Piston
NOTE
The piston can not be serviced with the
engine installed in the frame.
1) Place a clean rag over the cylinder base so as not to
drop the piston pin circlips into the crankcase.
2) Remove each piston pin circlip (1).
3) Draw out each piston pin (2) and remove the piston
(3).
NOTE
Scribe the cylinder number on the piston
head.
Engine Top Side Assembly
B823H11406017
Assemble the engine top side in the reverse order of
disassembly. Pay attention to the following points:
Piston
• When installing the pistons, apply molybdenum oil
solution onto each piston pin.
M/O: Molybdenum oil (MOLYBDENUM OIL
SOLUTION)
• Install the pistons and piston pins.
NOTE
• Be sure to install the pistons in the
cylinders from which they were removed in
disassembly, refer to the cylinder
numbers, #1 through #4, scribed on the
piston.
• When installing the pistons, the indent “A”
on the piston head must be faced to
exhaust side.
• Place a clean rag over the cylinder base so as not to
drop the piston pin circlips (1) into the crankcase.
• Install the piston pin circlips (1).
CAUTION
!
Use new piston pin circlips (1) to prevent
circlip failure which will occur when it is bent.
3
I823H1140330-01
1
I823H1140331-01
2
3
I823H1140332-01
“A”
I823H1140333-01
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