Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 108Get this manual
38) Assembly to Power Unit 123Install thermostat 1, new gasket and thermostat cover 2Install breather cover 3Install throttle cable bracket 4Thermostat Cap BoltsBreather Cover BoltsThrottle Cable Bracket Bolts(4 lb ft) [0.6 kgf m]
a bGaskets
Do not reuseInstall intake manifold and carburetor ass'y and tighten the bolts to specified torqueIntake Manifold Bolts10 (7 lb ft) [1.0 kgf m]
Attach breather hose 7Reinstall key and flywheel and tighten flywheel nut to specified torque8