Yamaha SR250G Service Manual page 87

Fegures <Allowance
Cylinder
Material
Buy s i a y
Teper lent
Out of reund init
P ston
Pistor clearance
Pictor eloaranca measuri9 pesition
Mr
Pistor pur bora size
pesto skirt bortom
Pistor pir ourside dlamorer
Pistor pir lonath
Over size vision dlamuter, 1st
Alumunam élloy with 9 2 1
~ 702 m7 4 7 6 . 1 mm
2.936 n «2.6567 n>
(0.0014 - vou:
20015 mm (0 7876 ~
5 ~ 20.CO0 iW (07872 ~
65 im(256
75 25 mmn (2 953 m)
78H n)
874 in|
2nd men (2.972 in)
aed
ath
Pater ang
Piston ring dimension: Tap fing B xT 229mm (0017 %0.114im)
2ndsing 8 xT §x3.3m7(0.029x0.130in)
Hing end gap (stall
2nd ting
Oineg
Ring croove side clearance: Top rng
Padang
Olt ing
Over sizep ston ring: *st
ra
eh
28x34mm(O.110x0 134in)
02 ~ - 0.4m 40.7 mms.
(©.9979 ~- 0.0187 in <0.028 ny)
02 ~0.4-m 40.7 mm>
0.0157 in <0.028 ins)
n>
n <0.038 ine)
0.0¢~ 008 mm <215 mm
(ITs ~ O.003T wn <0.908:
03 -- 007 mm <0.15mm>
9012 ~ 0.
na
75.25 mm 2.963 in)
| 75.50mm 2.972 in)
75.78 mm 2.982 in}