TOHATSU 40 Service Manual page 230

The following table summarizes the availability of the sensors and
approximate RPM when this feature is activated:
Sensor Type
Overheat Sensor
Water Pressure Sensor
Oil Level Sensor
Half-Maximum RPM Limitation Feature - Test
Perform this test when engine speed is limited to about half
maximum RPM or has a miss at about half maximum RPM.
The test assumes that:
• Tune-Up Procedure has been performed, see Section 2.
• Ignition Timing and the Carburetor Synchronization Procedure
has been performed, see Section 2.
• Engine is at operating temperature.
• Tests are performed with engine running in forward gear.
• Tachometer is installed.
Make sure all electrical terminals are connected
during this test except those that are noted in the
test procedure.
Check for continuity between chassis ground and
the ground connection for the magneto plate, CD
Unit, and ignition coils before conducting the
following procedure.
3-/ 4-Cylinder
RPM Limitation
NA
2800 ± 400 RPM
2800 ± 400 RPM
(lower float only)
NOTE
ELECTRICAL SYSTEM
7-51