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Fig. 50

Fig. 51

Assemble Carburetor by reversing the disassembly procedure carefully for the assembling order and direction of each part.

• Set Carburetor gasket in place so that the projection faces to the bottom side of Engine. (

Fig. 50

)

• Some specifications employ High speed needle. (Ask Makita authorized  service center.) If yes, tighten the needle to

the full. After that, unscrew the needle one and five eighth turns. This is the starting position to do fine adjustment.

• Put the stopper on Inner cable end into Swivel, then adjust the hex nut so that the threaded top protrudes 4mm up to 5mm.

(

Fig. 51

)

Note

: Make sure that a play for Inner cable is adequate, and throttle can be fully pulled.

• After completing the repair, turn the idle-adjustment screw counterclockwise to adjust the engine idling speed to 2,800rpm

   with 1$R070. (

Fig. 51

)

Face the projection of 

Carburetor gasket to 

the bottom side of Engine.

Stopper on Inner cable end

Cable bracket

Idle adjustment cable

TIPS OF ASSEMBLING

R

epair

P  1

4

/ 1

7

[4] DISASSEMBLY/ ASSEMBLY

[4]-11. Air cleaner assembly, Carburetor (cont.)

[4]-12. Stop switch

Fig. 52

Check the continuity between the bullet terminals on the two lead wires

extending from Control lever with a digital tester of 1R402. (

Fig. 52

)

If Stop switch functions properly,

there will be no continuity with the switch ON

and there will be continuity with the switch OFF.

1R402

CHECKING STOP SWITCH

the threaded top of

Control cable

Hex nut

Swivel

4mm up to 5mm

Summary of Contents for RBC414U

Page 1: ... Nylon head 1 Wrench 17 19 1 Hex wrench 4 1 Hex wrench 5 1 Double blade 305mm 12 Triple blade 255mm 10 Triple blade 305mm 12 Star blade 230mm 9 Star blade 255mm 10 8 tooth blade 230mm 9 8 tooth blade 255mm 10 Nylon cutting head Bump Feed Z5L Nylon cutting head Ultra Auto 6L Protector for cutting blade only Universal guard Protector Universal guard extension Safety googles Fuel mixture 650 25 5 8 D...

Page 2: ...of electrical parts Hex wrench 4 standard equipment 783223 2 782235 2 removing Clutch drum complete removing Spark plug Wire brush making Spark plug clean CAUTION Repair the machine in accordance with Instruction manual or Safety instructions removing assembling Retaining rings Tachometer 1R070 checking rpm of Engine Repair P 2 17 Follow the instructions described below in advance before repairing...

Page 3: ...ft pipe complete Fig 5 Bike handle section can be disassembled For RBC414U and RBC414UG only Loosen Knob 57 to remove Handle holder from Shaft pipe complete Bike handle section can be disassembled Remove Pipe clamp from Shaft pipe complete by unscrewing two M6x25 Hex socket head bolts Fig 6 Assemble by reversing the disassembly procedure ASSEMBLING Assemble by reversing the disassembly procedure A...

Page 4: ...ain Spiral bevel gear 13 and Cutter shaft complete cannot be supplied individually Order Cutter shaft set from us 7 Disassemble their assembled parts by using 1R269 and Arbor press Fig 7 Fig 10 Fig 11 Fig 8 Fig 9 M8x10 Hex bolt Grease inlet Spiral bevel gear 13 The component of Cutter shaft set Cutter shaft complete The component of Cutter shaft set Ball bearing 6000ZZ Ball bearing 6000 Ball beari...

Page 5: ...e the spring to the bottom of Lever case L between Boss of Lever case L and the curve rib installation position Fig 15 2 While retaining Leaf spring in between the curve rib and Boss turn Lever case R counterclockwise carefully to mate it with Lever case L without pinching Fig 16 Fig 13 Torsion spring 11 Control cable Lock off lever Cable holder Throttle lever Lever case L Torsion spring 7 Fig 15 ...

Page 6: ...prings two Wave washers 10 and two Flat washers 8 on Holder tighten them with two M8 shoulder hex bolts Fig 19 Note Face the marking of to the outside as drawn in Fig 19A 2 Put the assembled part Flat washer 6 Spring washer 6 and M6x14 Hex head bolt on the crank shaft of Engine then tighten the bolt to 12 N m with 1R219 1R220 while inserting 1R155 into Spark plug hole to lock Piston to prevent the...

Page 7: ...f Clutch case complete with 1R006 through the hole of Clutch drum complete Fig 22 3 Tap the corners of Clutch case complete carefully with Plastic hammer to remove Clutch drum complete Fig 23 4 Separate Damper and Shaft complete from Clutch drum complete Fig 24 5 Remove Retaining ring S 17 from Clutch drum complete with 1R004 Fig 25 6 Remove Ball bearing 6003LLU from Clutch drum complete with 1R02...

Page 8: ...nd Clutch drum complete in Damper Fig 28 Assemble the assembled part to Clutch case complete by tapping the center of Clutch drum complete carefully with Plastic hammer Fig 29 3 Fit Retaining ring R 35 into the groove of Clutch case complete with 1R006 through the hole of Clutch drum complete then set M6x14 Hex bolt and Flat washer 6 on Clutch drum complete while inserting Hex wrench into Gear cas...

Page 9: ...w 2 Clean carbonized materials on Insulated part for sparking with a wire brush 3 Do fine adjustment of Spark plug as drawn in Fig 32 Insert 0 7mm thickness gauge of 1R366 to the clearance and adjust the leg of Spark plug carefully then set Spark plug in place of Engine 4 Connect 1R181 between Spark plug and Plug cap spring and pull Starter rope gently and check that sparks appear in the spark win...

Page 10: ...embly See Fig 35 for the appearance viewed from Cylinder cover M5x50 Hex socket head bolt Blower housing Muffler cover Cylinder cover Muffler cover M5x14 Pan head screw M5x14 Pan head screw with spring washer and flat washer 2 pcs M5x20 Pan head screw with spring washer and flat washer Fig 36 Fig 37 ASSEMBLING OF IGNITION COIL See Fig 37 1 While attaching 0 45mm thickness gauge of 1R366 to the mag...

Page 11: ... on the center of Flywheel counterclockwise using Cordless impact driver Fig 38 2 Install 1R364 on Flywheel then screw two M6 bolts of 1R364 into Flywheel as drawn in Fig 39 Flywheel is removed from Engine Important Screw two M6 bolts evenly 1 Wipe off the grease and oil from Crank shaft Fig 40 2 Put Woodruff key 3 into Crank shaft then align the key groove of Flywheel to Crank shaft with the key ...

Page 12: ...y then connect the other end to Starter knob Fig 44 Refer to Fig 45 how to make a knot of the rope 4 Wind the rope around Reel two or three turns 5 While turning Reel counterclockwise fit it into the base of Starter case assembly and set Spiral spring end into the hook on inside of the base Figs 44 Note This should be fixed without force 6 Secure Reel with M6x20 set screw Fig 42 Swing arm has to b...

Page 13: ... new ones 4 Clean the routes in Carburetor with a commercial carburetor cleaner After minutes from the step blow away the liquid on the routes with a air gun Carburetor assembly Fig 48 Fig 49 Fig 47 REPLACING OF AIR CLEANER ASSEMBLY AND CARBURETOR M3x10 Pan head screw Cable bracket Swivel Washer Throttle valve Stop ring E 3 Packing ring Cleaner cover clip Air cleaner cover Carburetor Metering diap...

Page 14: ...or Inner cable is adequate and throttle can be fully pulled After completing the repair turn the idle adjustment screw counterclockwise to adjust the engine idling speed to 2 800rpm with 1 R070 Fig 51 Face the projection of Carburetor gasket to the bottom side of Engine Stopper on Inner cable end Cable bracket Idle adjustment cable TIPS OF ASSEMBLING Repair P 14 17 4 DISASSEMBLY ASSEMBLY 4 11 Air ...

Page 15: ...e other parts by reversing the disassembly procedure M mark on Piston Piston Flywheel Boss on groove of Piston Gap of Piton ring The gap of this piston ring is at the farthest side from here Crank case assembly Fig 53 Cylinder Crank case assembly Crankshaft assembly 1 It is highly recommended to drain the oil system of Engine block before starting disassembling because the oil remaining there will...

Page 16: ...x14 Pan head screw with flat washer and spring washer 3 5 Cylinder cover and Crank case assembly M5x20 Pan head screw with flat washer and spring washer M5x14 Pan head screw with flat washer and spring washer 3 5 Muffler cover and Cylinder cover 3 5 Spark plug and Cylinder M14 Spark plug 15 0 Flywheel and Crankshaft assembly M6x16 Hex socket head bolt with spring washer 12 5 Clutch assembly Clutch...

Page 17: ... M5x14 Pan head screw with flat washer and spring washer 3 5 Cylinder cover and Crank case assembly M5x20 Pan head screw with flat washer and spring washer M5x14 Pan head screw with flat washer and spring washer 3 5 Muffler cover and Cylinder cover 3 5 Spark plug and Cylinder M14 Spark plug 15 0 Flywheel and Crankshaft assembly M6x16 Hex socket head bolt with spring washer 12 5 Clutch assembly Clu...

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