Yamaha Outboard Motors Factory Service Manual F6 and F8, Page 114Get this manual
CONTROL SYSTEM (4)Stop the engine and check the engine oil temperature(5)Keep the engine running or let it cool down until the specified temperature is obtainedEngine oil temperature: 60 10 (140 50 F)
The periodical exhaust gas test should be done without the apronShift in neutral during exhaust gas testCalibrate the gas analyzer before measurement3Exhaust gas control of all cylinders at ones: Exhaust gas elements Out of specification Adjust the pilot screw