TOHATSU 40 Service Manual page 46

11. Start and run the engine up to normal operating temperature.
With an accurate tachometer installed, adjust the throttle stop
screw to obtain the specified RPM at neutral idle and trolling
speeds:
Model Neutral Idle RPM
40 / 50
60 / 70
80 / 90
115 / 120 / 140
Oil Pump Aperture Adjustment
Engine ignition timing must be properly adjusted and
the carburetors synchronized before adjusting the oil
pump aperture.
The oil pump aperture is adjusted at a specified throttle setting by
adjusting the length of the oil pump link rod so the control lever is
properly aligned with the 7 mm scribe mark on the oil pump. Use
the following specification table and procedure to adjust the oil
pump aperture.
1. Set the carburetor throttle as specified.
2. Check the alignment of the specified indicator mark on the
control lever with the scribe mark on the oil pump. Marks must be
aligned as shown in the correct figure. If not aligned, determine if
link rod needs to be lengthened or shortened to bring the marks
into alignment.
3. Remove the oil pump link rod and make length adjustment.
Reinstall link rod.
4. Recheck the alignment at the specified throttle setting(s).
5. Repeat procedure until oil pump aperture is properly adjusted.
3-/ 4-Cylinder
GENERAL SERVICE INFORMATION
Trolling RPM
900 750
900 750
900 700
900 700
NOTE
2-37