Yamaha Outboards 3P Service Manual, Page 71Get this manual
IELEC CLEANING, INSPECTION AND REPAIR M52501-0
IGNITION COIL 1) Inspect the high-tension cable and sparkplug cap for damage and cracks2) Measure the resistance of the primary coil, Black -OrangeIgnition coil resistance: Primary coil: 0.1020 at 20 deg.C (68 deg.F) 3) Measure the resistance of the secondary coil, BlackSecondary leadIgnition coil resistance: Secondary coil: 2.6kO 20 at 20 deg.C (68 deg.F)
M53000-0
REPLACEMENT OF SPARK-PLUG CAP 1) Remove the spark-plug cap by pulling the cap, and remove the plug-cap spring from the high-tension cable