TOHATSU 40 Service Manual page 321

SECTION 8
3. Proceed as follows:
• If symptoms disappear, go to PT/T Electrical Troubleshooting in
this section.
• If symptoms remain or test results vary, first perform the No Load
Motor Test in this section to rule out possible motor problems.
While motor is removed, verify the pump coupling is not
damaged or disconnected. Repair or replace parts as needed
and proceed with PT/T Component Troubleshooting in this
section if symptoms are not corrected.
PT/T Electrical Troubleshooting
Use this section to troubleshoot problems with the PT/T electrical
system.
Complete all Preliminary Service Checks before
troubleshooting the PT/T electrical system.
Disable the ignition system to prevent accidental
engine startup.
Follow the Service Checks in the order indicated:
Service Check 1 - Engine Fuse
1. Remove upper motor cover.
2. Open fuse holder and remove engine fuse.
3. Check condition of fuse holder contacts.
4. Check fuse condition and type. Fuse must be rated at 20A.
5. Proceed as follows:
• If fuse is blown, replace.
• If fuse appears not blown, test it for continuity.
Service Check 2 - Wire Connections
Verify all PT/T circuit wiring is properly terminated in accordance
with the wiring diagram. Make sure all connections are secure.
Refer to Outboard Motors Service Data publication
for wiring diagrams.
8-22
NOTE
WARNING
NOTE
3-/ 4-Cylinder