Suzuki 2003-2007 DF60 DF70 Outboard Motors Service Manual, Page 157Get this manual
POWER UNIT
VALVEVALVE GUIDE Valve guide to valve stem clearance Standard: IN 0.020 0.050 mm (0.0008 0.0020 in) EX 0.045 0.075 mm (0.0018 0.0030 in) Service limit: IN 0.070 mm (0.0028 in) EX 0.090 mm (0.0035 in) If the measurement exceeds the service limit, replace the valve andor the valve guideTo check the clearance, measure the following items: Valve stem outside diameter Valve guide inside diameter 09900-20205: Micrometer Small bore gauge or Dial calipers Standard: Valve stem outside diameter 6.965 6.980 mm (0.2742 0.2748 in) 6.940 6.955 mm (0.2732 0.2738 in) Valve guide inside diameter 7.000 7.015 mm (0.2756 0.2762 in) 7.000 7.015 mm (0.2756 0.2762 in)