1999 "EE" Evinrude 5 thru 15 4-Stroke Service Manual, P/N 787022, Page 122Get this manual
Engine Temperature CheckAll Models The Markal Thermomelt Stik is heat sensitive marker that melts on contact with surface of specific temperatureOne source for Thermomelt Stiks is Stevens Instrument Company
At least two Thermomelt Stiks, or OMC Temperature Gun, PIN 772018, or digital pyrometer should be used to determine the engine's operating temperatures1For the following engine operating temperatures and RPM figures to be correct, the inlet water temperature must be 70 100 (21 C)2Install correct test propeller and place engine in test tank6469
To avoid accidental starting of engine while changing propellers, twist and remove all spark plug leads
3Start engine and run at 3000 RPM for at least five minutes
Pyrometer Procedure