TOHATSU BFT115A Service Manual page 74

MAINTENANCE
5. If adjustment is necessary, loosen the valve
adjusting lock nut (1), and adjust the intake and
exhaust valve clearance by turning the valve
adjusting screw (2) right or left.
6. After adjustment, secure the adjusting screw and
loosely tighten the lock nut.
7. Recheck the valve clearances using a feeler gauge
(3), and tighten the valve adjusting lock nut to the
specified torque.
TORQUE:
IN: 20 N·m (2.0 kgf·m, 15 lbf·ft)
EX: 14 N·m (1.4 kgf·m, 10 lbf·ft)
8. After adjusting the intake and exhaust valve
clearance of the No. 1 cylinder, turn the crankshaft
pulley clockwise by increments of 180° and bring the
piston of each cylinder at the top dead center of its
compression stroke.
Repeat the procedures through step 4 to step 7 and
adjust the No.3, No.4 and No.2 valve clearance.
3-16
(1)
(3)
No.3 PISTON AT TOP DEAD CENTER
OF COMPRESSION STROKE:
No.4 PISTON AT TOP DEAD CENTER
OF COMPRESSION STROKE:
No.2 PISTON AT TOP DEAD CENTER
OF COMPRESSION STROKE:
(2)
INDEX LINES
INDEX LINES
INDEX LINES