1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 61Get this manual
Heli-Coillnserts and Installers LJ threadsThe installation kit consists of drill, tap, and insertion toolsThe 14 mm spark plug inserts are specially made for use in aluminum cylinder headsDo not use substitutes
f11 Use these Heli-Coil inserts on all models to repair damaged
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