2006 Johnson SD 30 HP 4 Stroke Outboards Service Repair Manual, PN 5006592, Page 119Get this manual
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POWERHEAD TEST PROCEDURES
145 to 203 psi (1000 to 1400 kPa) 14 psi (100 kPa)
Spark plug hole
REMOTE CONTROL MODELS
Disconnect the throttle cable from the throttle