Yamaha TT-R90E, Owner'S Service Manual

Page: 63 / 340

SPEC
2 - 6
Stem runout limit ---- 0.02 mm
(0.0008 in)
Valve seat width IN 0.9 ~ 1.1 mm
(0.0354 ~ 0.0433 in) 1.6 mm
(0.0630 in)
EX 0.9 ~ 1.1 mm
(0.0354 ~ 0.0433 in) 1.6 mm
(0.0630 in)
Valve spring:
Free length IN 32.45 mm (1.28 in) 26.9 mm
(1.06 in)
EX 32.45 mm (1.28 in) 26.9 mm
(1.06 in)
Set length (valve closed) IN 24.2 mm (0.95 in) ----
EX 24.2 mm (0.95 in) ----
Compressed pressure
(installed)
IN 138 ~ 158 N
(14.07 ~ 16.11 kg,
31.02 ~ 35.52 lb) ----
EX 138 ~ 158 N
(14.07 ~ 16.11 kg,
31.02 ~ 35.52 lb) ----
Tilt limit IN ---- 2.5˚/1.4 mm
(2.5˚/0.06 in)
EX ---- 2.5˚/1.4 mm
(2.5˚/0.06 in)
Direction of winding
(top view)
IN Clockwise ----
EX Clockwise ----
Item Standard Limit
*
MAINTENANCE SPECIFICATIONS