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SERVICE INFORMATION
GENERAL
CYLINDER/PISTON
•
This section covers maintenance of the cylinder and piston. These procedures can be done with the engine installed in
the frame.
•
Before
disassembly, clean
the engine thoroughly to
prevent
dirt
from
entering it.
•
Be careful not
to
damage
the
mating suriaces when
removing the
cylinder. For example. do
not use
a
screwdriver to
pry
the cylinder.
•
Clean all disassembled parts with cleaning solvent before
inspection,
use compressed air to
dry
the parts.
•
Under
racing
conditions, the piston and piston rings should be replaced after
15.0 hours
of operation.
Replace
the
pis-
ton pin after
30.0
hours
of operation
.
SPECIFICATIONS
ring
Top
0.065
-
0.100 (0.0026 - 0.0039)
0.115 (0.0045)
gap
0.90 (0.035)
TORQUE VALUE
Cam chain tensioner
lift
er mounting
bolt
12 N·m (1.2 kgf·m, 9lbHt)
10-3
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