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P 8/ 15

[4] DISASSEMBLY/ ASSEMBLY

[4]-8. Ignition

(1) Remove Plug cap from Spark plug, then detect the continuity between Plug cap spring in Plug cap and Earth terminal

      of Ignition coil. 

      It is the normal condition when Tester shows 2.45kΩ±10%. (

Fig. 26

)

(2) In case of no continuity or unstable continuity, check the connection between Plug cap spring and Ignition coil as follows:

     (A) Spray the lubricant in Plug cap, then pull out Plug cap spring together with Ignition cable using Pliers. (

Fig. 27

)

     (B) In case no connection or inconsistent connection, then check the condition of Plug cap and Plug cap spring. 

           Reassemble them or replace them if they are disorder.

     (C) Insert the end of Plug cap spring into Ignition cable then return them back to the inside of Plug cap carefully so as 

           not to be disconnected.

     (D) Check Plug cap and Plug cap spring again according to the step of (1) to avoid poor connection causing the poor 

           sparks of Spark plug.

Fig. 28

Fig. 26

Fig. 27

Plug cap

CHECK OF PLUG CAP (SPRING)

CHECK OF SPARK PLUG

Plug cap spring

Ignition cable

Pliers

Tester

(1) Remove Plug cap with Plug cap spring from Spark plug, then remove 

      Spark plug with Wrench 17-19 (standard equipment).

Note

: When the spark area is wet with Fuel, wipe it away with a cloth and dry it 

           by air blow.

(2) Clean carbonized materials on Insulated part for sparking with a wire brush.

(3) Do fine adjustment of Spark plug as drawn in 

Fig. 28

.

      Insert 0.7mm thickness gauge of 1R366 to the clearance and adjust the leg of

      Spark plug carefully.

(4) Install Plug cap with Plug cap spring on Plug and connect the plug screw part

      to a metal part of Engine, then pull Starter rope slowly.

      The sparks can be seen when starter rope is pulled.

(5) When the sparks can not be seen, refer to “

CHECK OF PLUG CAP (SPRING)

” 

      in this page to detect the continuity. If required, replace Plug and recheck the sparks 

      through the above process.

Earth terminal

0.6 up to 0.7 mm

Summary of Contents for RBC411U

Page 1: ...guard cutting tool and shoulder harness Note The standard equipment for the tool shown above may vary by country Double blade 305mm 12 1 Tool kit inc Socket wrench 17 19 Hex wrench 4 and Hex wrench 5 1 Shoulder harness with double shoulder straps 1 Accessory bag 1 Triple blade 255mm 10 Triple blade 305mm 12 Star blade 230mm 9 Star blade 255mm 10 Double blade 305mm 12 Eddy blade 8 tooth blade 230mm...

Page 2: ...justing Ignition coil Spark plug Wire brush making Spark plug clean CAUTION Repair the machine in accordance with Instruction manual or Safety instructions removing assembling Retaining rings Retaining ring pliers ST 2 for External ring 1R004 removing assembling Retaining rings Repair P 2 15 Follow the instructions described below in advance before repairing Wear gloves Remove the cutting tool fro...

Page 3: ...socket head bolt B on the neck of Gear case assembly and then remove two M5x14 Hex socket head screws Pull out Gear case assembly from the end of Shaft pipe complete 3 Remove two M6x30 Hex socket head bolts to separate Handle section from Shaft pipe complete Fig 5 Assemble by reversing the disassembly procedure ASSEMBLING Assemble by reversing the disassembly procedure ASSEMBLING DISASSEMBLING Rep...

Page 4: ...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 6 Fig 9 Fig 10 Fig 7 Fig 8 M8x10 Hex bolt 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 bearing 6201DDU Ball be...

Page 5: ...d from Spark plug 1 Remove the clutch section by unscrewing two M8 shoulder hex bolts Then remove M6x14 Hex head bolt with Impact driver Fig 13 2 Install 1R364 on Holder then screw two bolts into Holder as drawn in Fig 14 instead of M8 Shoulder hex bolts Holder is removed from Engine ASSEMBLING 1 After putting the clutch section two Clutch shoes and two Springs two Wave washers 10 and two Flat was...

Page 6: ...lete Figs 17 and 18 2 Unlock Retaining ring R 35 in the groove of Clutch case complete with 1R006 through the hole of Clutch drum complete Fig 18 3 Tap the corners of Clutch case complete carefully with Plastic hammer to remove Clutch drum complete Fig 19 4 Separate Damper and Shaft complete from Clutch drum complete Fig 20 5 Remove Retaining ring S 17 from Clutch drum complete with 1R004 Fig 21 6...

Page 7: ...nd Clutch drum complete in Damper Fig 24 Assemble the assembled part to Clutch case complete by tapping the center of Clutch drum complete carefully with Plastic hammer Fig 25 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 8: ...ng to the step of 1 to avoid poor connection causing the poor sparks of Spark plug Fig 28 Fig 26 Fig 27 Plug cap CHECK OF PLUG CAP SPRING CHECK OF SPARK PLUG Plug cap spring Ignition cable Pliers Tester 1 Remove Plug cap with Plug cap spring from Spark plug then remove Spark plug with Wrench 17 19 standard equipment Note When the spark area is wet with Fuel wipe it away with a cloth and dry it by ...

Page 9: ...gs 31 and 32 M5x22 Hex socket head bolt 2 pcs Recoil starter assembly See Fig 30 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 2 pcs M5x14 Pan head screw Fig 31 Fig 32 ASSEMBLING OF IGNITION COIL See Fig 32 1 While attaching 0 45mm thickness gauge of 1R366 to the magnet po...

Page 10: ...ad bolt on the center of Flywheel counterclockwise using Cordless impact driver Fig 33 2 Install 1R364 on Flywheel then screw two M6 bolts of 1R364 into Flywheel as drawn in Fig 34 Flywheel is removed from Engine Important Screw two M6 bolts evenly 1 Wipe off the grease and oil from Crank shaft Fig 35 2 Put Woodruff key 3 into Crank shaft then align the key groove of Flywheel to Crank shaft with t...

Page 11: ... rope end and pass it through Reel and Base of Starter case assembly then connect the other end to Starter knob Fig 39 Refer to Fig 40 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 39 Note This should be fixed without...

Page 12: ...res as drawn in Figs 1 and 2 4 Unscrew M5x5 Wing nut under Float body to drain the gasoline in Carburetor Fig 43 5 Pull out Fuel tube from the nipple Carburetor with 1R311 Fig 44 6 Remove Carburetor from Engine by unscrewing two M5x58 Pan head screws Fig 45 Element Carburetor Float body Nipple of Carburetor Carburetor M5x58 Pan head screw 2 pcs Fuel tube 1R311 M5x5 Wing nut Tray to receive Grease ...

Page 13: ...ing in Carburetor The adjustment on the proper ratio of Gasoline Air is necessary in accordance with the temperature fluctuation change the position to another Fig 49 Align the groove of Piston valve with the projection in the hole on Body then insert Piston valve into the hole of Body The misalignment causes the incomplete setting of Mixing cap because Piston valve gets deformed through the hole ...

Page 14: ...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 52 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 15: ...pring lock washer M5x14 Pan head screw with washer and spring lock 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 lock washer 12 5 Clutch assembly Clutch shoe and Holder M8 Shoulder hex bolt 12 0 Holder of Clutch assembly and Crankshaft assembly M6x14 Hex head bolt 11 5 Gear case as...

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