P 14, 4DISASSEMBLY/ASSEMBLY 4-8.Engine, Repair

P 14/ 19

Repair

[4]DISASSEMBLY/ASSEMBLY

[4]-8. Engine

DISASSEMBLING

(1)Remove Clutch complete and Clutch drum. Refer to [4]-3.

(2)Remove Flywheel. Refer to [4]-4. If necessary, remove Ignition coil.

(3)Loosen five M6x25 Hexalobular socket head bolts, then remove Cutting arm from Cylinder block complete. (Fig. 48)

(4)Remove Exhaust muffler from Cylinder block complete.

Note: Although Spark arrester can be removed from Exhaust muffler, it is not permitted to replace Spark arrester only because it functions as the integrated part with Exhaust muffler.

(5) Remove Oil case from Cylinder block complete. (Fig. 49)

Fig. 48		Fig. 49
	Exhaust
	muffler	Cylinder head
Cylinder block complete		Cylinder head
Cylinder block complete		complete
		complete
		Cylinder block
		Cylinder
		block
		complete
	Spark arrester	Crank case
	Spark arrester	Oil case
		Oil case
M6x25 Hexalobular	Cutting arm	M5x16 Hexalobular
M6x25 Hexalobular	Cutting arm	socket head bolt (4 pcs.)
socket head bolt (5 pcs.)		socket head bolt (4 pcs.)
socket head bolt (5 pcs.)

Note: Unless you repair Exhaust valves, Cam lifters, and Rocker arms, do the following steps. It is not necessary to remove Cylinder block from Crank case (Fig. 49)/ Carburetor from Cylinder block complete (Refer to Fig. 34.)

(6)Remove two M6x20 Hexalobular socket head bolts on the upper side of Exhaust muffler.

Remove two M5x25 Hexalobular socket head bolts then separate Rocker cover complete from Cylinder head complete. (Fig. 50)

(7)Loosen Hose clamp then remove Suction line from Cylinder head complete. (Refer to Fig. 41)

(8)Remove Cylinder head complete from Cylinder block, then pull out two Push rods. (Fig. 51)

Note: Do not failure to mix them up. It is recommend to distinguish Exhaust push-rod and Intake push-rod.

(9)Remove Cam gear cover (Fig. 52).

(10)Remove Cam lifter L and Cam lifter R. Then, remove Cam gear complete by pulling out Pin 5. (Fig. 53)

Fig. 50

Fig. 51

Rocker cover complete

M5x25 Hexalobular