2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Repair Manual P/N 5005990, Page 131Get this manual

2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Repair Manual P/N 5005990, Page 131

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POWERHEAD TEST PROCEDURES
linkage to WOT

Install compression tester's hose attachment into spark plug hole
IMPORTANT: The values shown only, not absolute sevice limits
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