5-15
ENG
CYLINDER HEAD AND CYLINDER
T
R
.
.
SDN5270
SDN5280
SDN5290
SDN5300
INSTALLATION
1. Install:
• Reed valves
• Reed valve stoppers
NOTE:
• Place the reed valve 1 with its concave surface
facing toward the reed valve seat 2.
• Fit the reed valve stopper cut a into the corre-
sponding cut b on the reed valve.
2. Tighten:
• Screws (reed valve) 1
Screws (reed valve) 1:
1 Nm (0.1 m • kg, 0.7 ft • lb)
LOCTITE
®
NOTE:
Tighten each screw gradually to avoid warping.
3. Install:
• Gasket (read valve)
NOTE:
Install the gasket so that the projection a is
positioned as seen from the intake side in the
illustration.
4. Install:
• Small end bearing
• Piston
• Piston pin
• Piston pin clip
• Piston rings
NOTE:
• The arrow a on the piston must point toward to
the front of the engine.
• Before installing the piston pin clip, cover the
crankcase with a clean rag so that you do not
accidentally drop the pin clip and other material
into the crankcase.
• Position each piston very carefully in its origi-
nal place.
CAUTION:
• Always use new piston pin clips.
• Do not allow the clip gap to align with the
piston pin slot.
a
SDN5310
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