Honda HHT25S Manual page 105

CRANKSHAFT / PISTON / VALVES / CYLINDER BLOCK
6. Loosen the push rod [1] and tighten the holder bolt [2] by hand until the
valve lifter [3] contacts the cylinder head cover mounting boss [4]. Be
sure that the bolt (5 mm) [5] is in the center of the long hole in the
special tool.
NOTICE
The cylinder head cover mounting boss can be damaged by tighten the
push rod with the bolt (5 mm) not in the center but on either side in the
long hole. Be sure that the bolt is in the center of the long hole securely.
7. Using a 14 mm wrench, retighten the push rod [1] until the adapter [2]
comes to the shaft of the valve lifter [3]. Loosen the push rod and
remove the bolt (5 mm) [4], and then remove the special tool.
8. Measure the clearance between the rocker arm and the cylinder head,
and make sure if the clearance are within the specification.
Rocker arm and cylinder head clearance:
0.15 – 0.65 mm (0.006 – 0.026 in)
If the clearance is over the specification, the rocker arm is not correctly
installed to the valve lifter. Install the special tool again, and tighten the
push rod until the rocker arm is completely pressed onto the shaft of
the valve lifter.
9. Inject the oil as shown. Lift the lifter by finger and release the lifter, and
make sure it operates by the lifter's weight.
Install the adjusting screws and the adjusting screw lock nuts to the
rocker arms.
Install the cam pulley (P. 8-1
Adjust the valve clearance
9-14
,
P. 8-7).
(P. 3-10).
[4]
Loosen
[1]
[2]
Tighten
[1]
0.15 mm - 0.65 mm (0.006 - 0.026 in)
HHT25S•HHT35S
[5]
Tighten
[2]
[3]
[4]
[3]