1978 Johnson 4HP outboards Service Manual, Page 37Get this manual
insure good electrical contact and securityNo soldering is required when using the OMC Crimping Pliers cSupport the connector against flat surface, and push the terminal into the connector until the shoulder on the insert tool is at the end of the connectorSee Figure 4-11
CONNECTOR TERMINAL INSTALLATION
aApply Isopropyl alcohol or acetone into the connector cavity
IGNITION TEST PROCEDURE
Check the power pack ground wire to be sure it is clean and securely grounded before troubleshootingSPARK TEST aRemove the high tension lead from each spark plugTo prevent damage to the spring terminal on the high tension lead, twist and pull on the coverSee Figure 4-12
IIA SAFETY WARNING
To avoid personal injury, securely hold insert tool against shoulder of terminal while installing terminals into connector cavitybPosition the insert tool against the shoulder of the terminalSee Figure 4-10