1968 Evinrude Speedifour, Starflite 85HP Service Manual, Page 34Get this manual
45 DO NOT set timing to other than specificationsDO NOT hold the spark plug wires with your hand severe while checking for spark dischargeselectrical shock will resultUse insulated pliers designed for this purposeDO NQT attempt any tests except those listed in the trouble shooting procedureDO NOT connect electric tachometer tothis system unless it is type which approved for with this systemDO NOT connect the system to any voltage source other than 12 volt negative ground
6710DO NOT test this system without proper ground connections and these ground connections to short possible
DISASSEMBLY OF DISTRIBUTOR
Figure 4-9Spark Retard or Advance Stop Screw Remove flywheel described in Section 5Disconnect stator leads (yellow) at connector and remove statorLift off distributor wave washer, and rotorSee Figure 4-10wi11 breaker point assemblies and reverse cut-off spring
the preceding tests demonstrate that the wiring is good, and that the amplifier and coil are working properly, the distributor must disassembled and examinedDO'S AND DON'TS FOR 12DIGNITION SYSTEMS