Yamaha TT-R125E(R), Owner'S Service Manual

Page: 78 / 578

SPEC
2 - 7
MAINTENANCE SPECIFICATIONS
EC212000
MAINTENANCE SPECIFICATIONS
EC212100
ENGINE
Item Standard Limit
Cylinder head:
Warp limit ---- 0.03 mm
(0.0012 in)
Cylinder:
Bore size 54.000 ~ 54.019 mm
(2.1260 ~ 2.1267 in) ----
Out of round limit ---- 0.05 mm
(0.0020 in)
Camshaft:
Drive method Chain drive (left) ----
Cam dimensions
Intake “A” 25.881 ~ 25.981 mm
(1.0189 ~ 1.0229 in) 25.851 mm
(1.0178 in)
“B” 21.195 ~ 21.295 mm
(0.8344 ~ 0.8384 in) 21.165 mm
(0.8333 in)
Exhaust “A” 25.841 ~ 25.941 mm
(1.0174 ~ 1.0213 in) 25.811 mm
(1.0162 in)
“B” 21.050 ~ 21.150 mm
(0.8287 ~ 0.8327 in) 21.020 mm
(0.8276 in)
Camshaft runout limit ---- 0.03 mm
(0.0012 in)