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92 Servicing Your Honda
Piston/Piston Rings/Piston Pin
1. Place clean shop towels (1) over the crankcase
opening to keep the piston pin clips from
falling into the crankcase.
2. Apply molybdenum disulfide oil (a mixture of
1/2 engine oil and 1/2 molybdenum disulfide
grease containing more than 3% molybdenum
disulfide additive Moly Paste 77) to the
connecting rod small end (2) inner surface.
3. Install the piston (3) with the “IN” mark (4)
and/or the large valve recesses (5) facing the
intake side of the engine.
Apply molybdenum disulfide oil (a mixture of
1/2 engine oil and 1/2 molybdenum disulfide
grease containing more than 3% molybdenum
disulfide additive Moly Paste 77) to the piston
pin (6) 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 (7).
Be careful not to damage or shock the piston pin.
Use new pin clips. Never reuse old clips.
Do not let the clips fall into the crankcase.
Do not align the piston pin clip end gap with the
piston cutout (8).
Piston Installation
(1) shop towels
(2) connecting rod small end
(1)
(2)
(3) piston (5) large valve recesses
(4) “IN” mark
(4)
(5)
(3)
(6) piston pin (8) piston cutout
(7) piston pin clips (new)
(6)
(8)
(7)
(7)
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