1998 Johnson Evinrude "EC" 150, 175 FFI Service Manual, P/N 520211, Page 129Get this manual
Spark Plug Lead Resistance-CylNoLength Ohms
20 in(527 mm)
Ignition Coil Resistance
Connect ohmmeter between coil primary terminal and clean engine ground
Ignition Coil Primary Resistance
[] Connect ohmmeter between coil secondary terminal and coil primary terminalDR4037