2007-2009 Suzuki LTZ90 factory service manual, Page 244Get this manual
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SERVICING INFORMATION
Valve guide I.DValve stem O.D
IN& EXINEX
STANDARD 22.5 (0.89) 19 (0.75) 0.05 0.10 (0.002 0.004) 0.10 0.15 (0.004 0.006) 0.010 0.037 (0.0004 0.0015) 0.030