Makita PM7651H Technical Information page 39

6-15-2 Adjustment of valve clearance
Adjust the valve clearance as follows:
[1] Align each marking on Flywheel parallel to Crankcase. (Fig. 6-15-1-2-3)
Fig. 6-15-2-1
[2] Loosen Adjusting screws, and insert 0.1mm feeler
gauge of 1R366 into the clearance between Rocker arms
and Intake/ exhaust valve holes.
Tighten and loosen Adjusting screws so that 0.1mm
feeler gauge can be passed and 0.15mm feeler gauge
cannot. (Recommended value: 0.1mm)
After adjustment, tighten M5 Hex nuts while slightly
holding Adjusting screws to the screwed direction, and
pull out the feeler gauge.
[3] Turn Flywheel a few times to check that the clearance is
appropriate.
0.1mm feeler gauge
of 1R366
6-15-3 Assembling of Muffler exhaust and Insulator complete
Assemble Muffler exhaust and Insulator complete as shown below.
M5x25 Hex socket
head bolt (2 pcs.)
Note: with adhesive
Rocker arm
Hex wrench 2.5
Adjusting screw
M5 Hex nut
Offset wrench 8
M5x14
Socket head
bolt
Insulator
complete
[4] Assemble Rocker cover gasket and Rocker cover
complete to Cylinder head complete with two M5x30
Hex socket head bolts.
Fig. 6-15-3-1
Exhaust port Muffler
spacer gasket
M6x18 Socket head
Note: with adhesive
39 / 41
Fig. 6-15-2-2
M5x30 Hex socket
head bolt (2 pcs.)
Rocker cover
Rocker cover
Cylinder head
Muffler
exhaust
bolt (2 pcs.)
complete
gasket
complete