Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 80Get this manual
4 Loosen pivot lock nut and then turn the pivot so that valve clearance reaches specified value Turning pivot clockwise makes valve clearance smaller Turning pivot counterclockwise makes valve clearance larger
Tighten pivot lock nut to specified torque, and check valve clearance againReadjust if necessaryPivot Lock Nut10 (7 lb ft) [1.0 kgf m] Torque WrenchUse commercially available itemThickness GaugeUse commercially available item Perform inspection and adjustment of valve clearances when engine is cold After the adjustment, turn flywheel twice (top dead center in compression stroke) to check the clearance againValve Clearance (when engine is cold)(IN) Intake Side0.060.14 mm (0.00240.0055 in) (EX) Exhaust Side0.110.19mm (0.00430.0075 in)