ENGINE DISASSEMBLY / ASSEMBLY
4.292004 Four Stroke PWC Service Manual
Engine Inspection Procedures
Valve Inspection
NOTE: Valves cannot be replaced. If valve face is burned or excessively worn, replace valve.
Measure diameter of valve.
S Out of specification: Replace
Measure valve face width.
S Out of specification: Replace valve
Measure valve seat contact width.
1. Apply light coating of Prussian Blue or similar dye
compound to valve face.
2. Install valve into valve guide.
3. Tap valve several times to make a clear impression on
the valve face. Do not rotate valve.
4. Remove valve and measure valve seat width.
S Out of specification: Recondition or re-
place cylinder head.
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