2004 SR Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 116Get this manual

2004 SR Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 116

POWERHEAD INSPECTIONSERVICING
Valve Stem Wear
Measure: Valve stem outside diameter

Micrometer Valve stem outside diameter Standard: IN EX 5.4755.490 mm (0.21560.2161) 5.4505.465 mm (0.21460.2151)

If out of specificationReplace andor Measure STEM DEFLECTION

Valve Stem Deflection
Measure: Valve stem deflection (lateral movement) 1Lift valve10 mm off seat2Set up dial gauge with spindle parallel to cylinder head surface

Back to 2004 SR Johnson 4 Stroke 9.9-15HP Outboards Service Manual