1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 53Get this manual
HeliCoillnserts and Installers f.j"1l
Use these HeliCoil inserts on all models to repair damaged threads The installation kit consists of drill, tap, and insertion tools
INote The 14 mm spark plug inserts are specially made for use in aluminum cylinder headsDo not use substitutesPIN Name of Part
391436 391438 391439 391440 391441 391450 391437 391448 391447 391446 391445 391444 391449 391443 391442