Shibaura N843, Workshop Manual

Page: 44 / 75

4-8 109823 2/09
Cap · Push rod · Rocker arm assembly
1. Install the cap to the valve stem end.
2. Install the push rod and rocker arm assembly.
Valve clearance adjustment
Loosen the locking nut of the intake and exhaust valve
rocker arm and adjust the valve clearance to 0.008 in (0.2
mm) by turning the adjust screws.
Notes: 1. Adjust the valve clearance while cold.
2.
Be sure the tappet is in its lowest
position before making adjustment. To
be sure the tappet is in its lowest
position, bring the piston to top dead
center on the compression stroke.
(both valves closed)
Rocker arm assembly tightening torque
177.0-221.3. lb
f
•in (20–25 N·m) {2.0–2.5 kgf·m}
Lock nut tightening torque
106.2-141.6 lb
f
•in (12–16 N·m) {1.2–1.6 kgf·m}
Fig. 4-19
1
2
Fig. 4-20
Adjusting Screw
Push Rod
Valve Clearance