Page 2 - epair
CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”. [4] DISASSEMBLY/ASSEMBLY [4]-1. Warning Obey the following instructions in advance before repairing . • Wear gloves. • Keep the cover on the blade other than a trial of engine running. • Cool down engine en...
Page 3 - Note
[4] DISASSEMBLY/ASSEMBLY [4]-2. Engine and Shaft DISASSEMBLING ASSEMBLING (1) Disconnect lead wire and grounding wire by removing each connector after removal of Air cleaner cover. ( Fig. 1 ) (2) Remove Control cable from Insulator as follows: • Loosen the nuts of Control cable so as to relax the ho...
Page 5 - • Receive Gear case assembly with the U-shape table of Arbor press,
R epair [4] DISASSEMBLY/ASSEMBLY [4]-5. Gear case assembly DISASSEMBLING ASSEMBLING (1) According to the clause of [4]-3 , Remove Gear case assembly. (Refer to Figs. 7, 8 and 9 ) (2) Remove M8x10 + Hex bolt that is the stopper of Grease inlet on Gear case set. ( Fig. 15 ) (3) Remove Retaining ring R...
Page 7 - CHECK OF PLUG CAP
[4] DISASSEMBLY/ASSEMBLY [4]-6. Clutch drum DISASSEMBLING ASSEMBLING (1) Remove Clutch case section from the engine. (2) Remove Retaining ring S-12 with 1R004 from clutch case section. (3) Remove Clutch drum from Clutch case section by pressing 1R247 with Arbor press. ( Fig. 29 ) (1) Put Clutch case...
Page 10 - • slackened • hardened • worn / debased
R epair P 1 0 / 14 [4] DISASSEMBLY/ASSEMBLY [4]-10. Carburetor (1) Remove Cleaner cover assembly by unscrewing M4 Thumb screw. ( Fig. 47 ) (2) Remove two Air cleaner elements. ( Fig. 48 ) (3) Remove two M5x60 Hex. socket head bolts for fastening Carburetor and Cleaner plate assembly to Insulator. ( ...
Page 11 - Breather pipe
R epair P 1 1 / 1 4 [4] DISASSEMBLY/ASSEMBLY [4]-10. Carburetor (cont.) Carefully assemble each part in right direction and order. Connect 1R127 to the nipple of Carburetor as drawn in Fig. 53 . Give air pressure from 1R127 and check if the pressure gauge indicates 0.05Mpa for around 10 seconds, the...
Page 12 - Spark arrester
R epair P 1 2 / 1 4 [4] DISASSEMBLY/ASSEMBLY [4]-13. Spark arrester ( Only for some countries, i.e., having dry atmospheres at high temperature) (1) Remove Cylinder cover. (2) Remove Exhaust Muffler. (3) Remove Spark arrester from Exhaust muffler ( Fig. 59 ). Sweep it off if dirt or soot is on Spark...
Page 13 - must have 180° angle when they fixed into the grooves on the piston.; 216 on the Crank case side.; Apply 4-stroke oil to the contact surface of Piston and Cylinder.; Clearances should not be overlapped each other.
R epair [4] DISASSEMBLY/ASSEMBLY [4]-14. Engine block (cont.) (1) Piston can be assembled in either direction. Apply Makita grease N No. 2 to the needle bearing of Crank shaft assembly in advance. (2) Insert Piston pin through Piston and Crank shaft, and fix it with Clips by using the awl (Clip has ...
Page 14 - • Align the marking on Flywheel with the marking on Ignition coil. (; and Rocker arms.
R epair P 1 4 / 1 4 [4] DISASSEMBLY/ASSEMBLY [4]-14. Engine block (cont.) (6) Adjust the valve clearance as follows: • Align the marking on Flywheel with the marking on Ignition coil. ( Fig. 65 ) • Align the marking on Cam gear assembly with the marking on Cylinder block. ( Fig. 66 ) • Assemble two ...