1978 Johnson 175, 200, 235 HP Outboard Service Manual, Page 46Get this manual
Connect the high tension lead wires to the spark plugsMake sure that the spring clips in the spark plug lead covers make firm contact with the spark plug terminalsSee Figure 4- 5 1Stator 2Sensor and timer assembly (sensor coils are potted)
Figure 4- 5Correct Spark Plug Lead Installation 3CHECKING FOR SPARKUse spark checking device, such as needle type spark gap checker (see Figure 4-6) to check for spark at the plug leadsSpark must jump 716" (11 mm) gap on needle type spark checkerIf sparking does not occur while cranking engine, proceed with following checksIf sparks are apparent, proceed to "CHECKING TIMING