Disassembly And Reassembly - Hitachi CS 51EAP Service Manual

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Table of Contents

1. Disassembly and reassembly of the cleaner and carburetor

[Tools required]

Phillips screwdriver

Hex. bar wrench (4mm)

(1) Disassembly

Loosen the Cleaner Knob [6] and remove the Cleaner Cover [2].

Use a Phillips screwdriver to loosen the three Cover Set Bolts [4], and then remove the Cylinder Cover [5].

Pull out Cleaner Element (A) [9] and Cleaner Element (B) [8].

Remove the Clip [31] and pull out the Fuel Pipes [68] [51] [72] from the Carburetor Ass'y [52]. Use a

hex. bar wrench (4 mm) to remove the Hex. Socket Hd. Bolt M5 x 12 (Precote) [38] and two Hex.

Socket Hd. Bolts M5 x 45 [70]. Then remove the Cleaner Support [71] and Carburetor Ass'y [52].

(2) Reassembly

Reassembly can be conducted by reversing the disassembly procedure. However, special attention

should be given to the following items.

Do not bend the Fuel Pipes [68][51][72]. (See "2. Connecting the fuel pipes" for details.)

Apply 0.1 to 0.2 gram of Alvania Grease RL3 to the sliding portion of the Choke Rod Rubber [92] for

the Choke Button [93]. Pull out the Choke Button [93] and then turn the throttle of the carburetor.

Make sure that the Choke Button [93] returns automatically and the carburetor's choke valve opens to

its initial position.

Apply 0.1 to 0.2 gram of Alvania Grease RL3 to the lug portions (to be fitted in the grooves of the

Engine Case (A) Ass'y [87] and Engine Case (B) Ass'y [80])) of the Operation Plate [94].

Be careful not to get Cord (A) [163] and Cord (B) [164] caught in the Cylinder Cover [5].

Cleaner and carburetor

Shutter Plate [3]

Cover Set Bolt [4]

Cylinder Cover [5]

Carburetor Insulator (C51) [50]