Makita EK7650H Technical Information

Also see for EK7650H: Instruction manual Owner's and safety manual Original instruction manual Instruction manual Original instruction manual

[4] DISASSEMBLY/ASSEMBLY[4]-8. EngineR epairP 14/ 19DISASSEMBLINGFig. 48 Fig. 49(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 onlybecause it functions as the integrated part with Exhaust muffler.(5) Remove Oil case from Cylinder block complete. (Fig. 49)Note: Unless you repair Exhaust valves, Cam lifters, and Rocker arms, do the following steps. It is not necessary toremove 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 headcomplete. (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)M5x16 Hexalobularsocket head bolt (4 pcs.)M5x16Hexalobularsocket headbolt (4 pcs.)Cam gear coverM6x25 Hexalobularsocket head bolt (5 pcs.)Oil caseCylinder blockCrank caseCylinderblockcompleteCylinder headcompleteCylinder block completeCutting armExhaustmufflerSpark arresterFig. 50 Fig. 51Fig. 52 Fig. 53M6x20 Hexalobularsocket head bolt(2 pcs.)Cylinder blockCam lifter LPin 5Cylinder head completeM5x25 Hexalobularsocket head bolt(2 pcs.)M6x35 Hexalobular sockethead bolt (4 pcs.)Rocker covercompletePush rod (for exhaust system)Push rod (for intake system)Cam lifter R Cam gear assemblyCam gearcompleteFly weightCam gear plateTorsion spring 9Do not touch this M6x20Hexalobular sockethead bolt.