2004-2009 Suzuki LT-Z250 Service Manual, Page 301Get this manual
LT-Z250K606-MODEL) SERVICE DATA VALVEGUIDE ITEM Valve diamINEXTappet clearance (when cold) INEXValve guide to valve stem
EXIN& EXIN& EXIN& EX256 294 (26.1 30.0 kgf, 57.5 66.1 lbs) at length 36.6 mm (1.44 in) 0.88 1.08 (0.035 0.043) 0.03 (0.001)
43.0 (1.69) 5.500 (0.2165 5.475 (0.2156 5.455 (0.2148 5.512 0.2170) 5.490 0.2161) 5.470 0.2154) 0.05 (0.002) 0.5 (0.02) 2.5
(0.10) STANDARD 32 (1.3) 28 (1.1) 0.03 0.08 (0.001 0.003) 0.08 0.13 (0.003 0.005) 0.010 0.037 (0.0004 0.0015) 0.030 0.057