6-14 POWER UNIT
Camshaft journal oil clearance
Standard: 0.020 – 0.062 mm (0.0008 – 0.0024 in)
Service limit: 0.100 mm (0.0039 in)
If the journal oil clearance exceeds the service limit, replace
camshaft and if necessary, cylinder head and/or oil gallery
block.
To check the clearance, measure the following items:
• Camshaft journal outside diameter (2 locations)
• Camshaft holder inside diameter (2 locations)
09900-20205: Micrometer
09900-20605: Dial calipers
Camshaft journal outside diameter
Standard:
Upper side 24.959 – 24.980 mm (0.9826 – 0.9835 in)
Lower side 22.959 – 22.980 mm (0.9039 – 0.9047 in)
Camshaft holder inside diameter
Standard:
Upper side 25.000 – 25.021 mm (0.9843 – 0.9851 in)
Lower side 23.000 – 23.021 mm (0.9055 – 0.9063 in)
Decompression parts (For manual starter model)
Inspect the decompression parts on the camshaft.
If abnormal movement is found, replace the camshaft.
ROCKER ARM/SHAFT
Rocker arm
Inspect the cam-riding face and tip of the adjusting screw.
If excessive wear is found, replace the rocker arm and/or adjust-
ing screw.
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