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Piston/Piston Rings/Piston Pin
Piston Installation
1. Place clean shop towels over the crankcase
opening to keep the piston pin clips from
falling into the crankcase.
2. Apply molybdenum disulfide oil solution (a
mixture of 1/2 engine oil and 1/2
molybdenum disulfide grease containing more
than 3% molybdenum disulfide additive) to
the connecting rod small end.
3. Install the piston (1) with the “IN” mark (2)
and/or the large valve recesses (3) facing the
intake side of the engine.
4. Apply engine oil to the piston pin (4) outer
surface.
Apply engine oil to the piston outer surface
and piston pin hole inner surface.
Install the piston pin and new piston pin clips
(5).
Use new piston pin clips. Never reuse old piston
pin clips.
Do not let the piston pin clips fall into the
crankcase.
Do not align the piston pin clip end gap with the
piston cut-out (6).
NOTICE
(1) piston (4) piston pin
(2) “IN” mark (5) piston pin clip
(3) large valve recesses (6) piston cut-out
Cylinder Installation
1. Place clean shop towels over the crankcase
opening to prevent dust or dirt from entire the
engine.
2. Clean off any gasket material from the gasket
surface of the crankcase.
3. Remove the shop towel.
Do not let any gasket debris fall into the
crankcase.
4. Install the dowel pins (1) and new cylinder
gasket (2).
Do not let the dowel pins fall into the crankcase.
NOTICE
(1) dowel pins
(2) cylinder gasket
5. Clean any gasket material off the cylinder.
(1)
(3)
(2)
(1)
(2)
(4)
(5)
(6)
(5)
(1)
(2)
78 Servicing Your Honda
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