Yamaha 115-225 HP Outboards Service Manual, Page 244Get this manual
ENGINE WILL NOT START
Does the spark-plug cap have no leaks?
Replace(P8-15)
Is the high-tension cable damaged or leaky? Are the COl-unit terminals connected correctly? Are the ignition-coil, charge coil and pulser coil all in good condition?
Replace(P8-15)
Connect correctly (P3-4, 3-7, 3-10)
Replace(P8-138-15)
NO Is the COl-unit in good condition?