Yamaha Raptor 700R 2009 Service Manual

CYLINDER AND PISTON
5-28
b. If out of specification, replace the cylinder,
and replace the piston and piston rings as a
set.
c. Measure piston skirt diameter D “a” with the
micrometer.
d. If out of specification, replace the piston and
piston rings as a set.
e. Calculate the piston-to-cylinder clearance
with the following formula.
f. If out of specification, rebore or replace the
cylinder, and replace the piston and piston
rings as a set.
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EAS24430
CHECKING THE PISTON RINGS
1. Measure:
• Piston ring side clearance
Out of specification → Replace the piston
and piston rings as a set.
T
IP
Before measuring the piston ring side clearance,
eliminate any carbon deposits from the piston
ring grooves and piston rings.
2. Install:
• Piston ring
(into the cylinder)
T
IP
Level the piston ring into the cylinder with the
piston crown.
Bore
102.000–102.010 mm (4.0157–
4.0161 in)
Wear limit
102.080 mm (4.0189 in)
Taper limit
0.05 mm (0.002)
Out of round limit
0.05 mm (0.002 in)
a. 10 mm (0.39 in) from the bottom edge of the
piston
Diameter D
101.955–101.970 mm (4.0140–
4.0146 in)
• Piston-to-cylinder clearance =
Cylinder bore “C” –
Piston skirt diameter “D”
Piston-to-cylinder clearance
0.030–0.055 mm (0.0012–0.0022
in)
Limit
0.13 mm (0.0051 in)
Top ring
Ring side clearance
0.030–0.070 mm (0.0012–0.0028
in)
Limit
0.12 mm (0.0047 in)
2nd ring
Ring side clearance
0.030–0.070 mm (0.0012–0.0028
in)
Limit
0.13 mm (0.0051 in)
a. 50.0 mm (1.97 in)

Yamaha Raptor 700R 2009 Specifications

General

Brand	Yamaha
Model	Raptor 700R 2009
Category	Offroad Vehicle
Language	English