1997 "EU" Johnson Evinrude 5 thru 15 Four Stroke Service Manual, P/N 507262, Page 127Get this manual
m rn 1ReduceC)speedato163 RPM and mark the cylinder 900 head with 125 (52 and (73 C) Thermomelt Stik0 0
Thermomelt Stik Procedure
2At 900 RPM, the 1250 (52 C) mark should remain liquid and glossyThe 1630 (73 C) mark should remain dull and chalky If the 1250 (52 C) mark does not remain liquid and glossy, troubleshoot the cooling system for causes of overcooling If the 1630 (73 C) mark becomes liquid and glossy, troubleshoot cooling system for causes of overheating
m rn 3(73 C) the engine speed is dull and chalkyWhen increased to 5000 RPM, the 163 mark should remain
If the mark becomes liquid and glossy, troubleshoot the cooling system for causes of overheating
Servicing Camshaft SealAll Models
The presence of oil under the cam pulley could indicate leaking camshaft sealThe seal can be replaced without disassembly of cylinder headRemove the belt, cam pulley, and key as described in this section Use OMC Seal Remover Kit, PIN 391060, and OMC Pressing Screw, PIN 342227, to remove the sealTo remove seal, install tip "A" on 9.915 (305cc) or tip "D" on thru 9.9 (211cc) into removerinstaller bodyThread removerinstaller body with tip into seal to engage metal casescrew While holding removerinstaller body, turn pressing nd remove sea I