2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 131Get this manual

2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 131

POWERHEAD TEST PROCEDURES
TEST PROCEDURES
Compression Testing
Start and run outboard until it achieves operating temperature, then shut OFFRemove lower side coversRefer to SIDE COVER on p180Remove spark plugs Advance throttle linkage to WOTInstall compression tester's hose attachment into spark plug hole

WARNING

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