1995 Johnson Evinrude "EO" 90 CV 85 thru 115 Service Manual, P/N 503150, Page 127Get this manual

1995 Johnson Evinrude "EO" 90 CV 85 thru 115 Service Manual, P/N 503150, Page 127

Engine Temperature Check The Markal Thermomelt Stik is heat-sensitive marker that melts on contact with surface of specific
30 e)Pyrometer Procedure 1Install correct test propeller and place engine in test tank i lers to avoid accidental starting
of engine '" Twist and remove spark plug leads before changing propel- 2Start engine and run at 3000 RPM for at least five
minutes lJ minutesAt 900 RPM digital pyrometer should indicate 140 r:;] 3Reduce engine speed and run engine at 900 RPM for
five e) when held on both cylinder heads If engine temperature is not within this range, troubleshoot cooling system to determine
problemrJl 4Increase engine speed to 5000 RPMAt 5000 RPM the digital pyrometer must not indicate more than 1600 (71 e) If
engine temperature exceeds 1600 (71 e), troubleshoot cooling system to determine problemIf you get low or inaccurate readings