P 11/ 19

Repair

[4]DISASSEMBLY/ASSEMBLY

[4]-5. Carburetor (cont.)

ADJUSTMENT OF CARBURETOR AFTER REPLACEMENT

Pull throttle lever fully after a while engine running at idle position. When there is Fig. 38 a problem with the engine quick acceleration, adjust H needle (Fig. 38) as follows:

(1)Warm up the engine by pulling the throttle lever fully for one minute.

(2)Keep engine idling and do fine adjustment of the idling speed by turning

H needle (Fig. 38) with a thin slotted screwdriver.

 

 

(3) Pull the throttle lever quickly. If Engine stall happens/ Engine does not reach

 

 

the maximum rpm, do step (4). If there are no problems with the engine quick

 

 

acceleration, go ahead to step (5).

 

 

(4) Unscrew H needle 1/8 turn (45°) with a thin slotted screwdriver.

Adjust H needle through the hole

After pulling the throttle lever fully with no load, retry the step (3).

(5) Push two Limiter caps (Fig. 37) into Carburetor with a flat top of rod.

near H mark with a thin slotted

screwdriver.

Note: It is not necessary to touch L needle.

 

 

ASSEMBLING

 

Fig. 39

Assemble by reversing the disassembly procedure. Be careful to the following points.

 

 

Sponge

• Align the ends of Sponge sleeve 9 and Breather on Tube 3-190. (Fig. 39)

 

sleeve 9

• Set Breather in place so that Tube 3-190 is fixed to the rib in Tank complete. (Fig. 40)

Breather

• Set Tubes, Choke linkage and Throttle linkage in place. (Fig. 41) Be careful to each

 

 

 

direction of the linkages.

 

Tube 3-190

Fig. 40

 

 

Fix the assembled part drawn in Fig. 39 with Lead wire holder in Tank complete

Fig. 41

 

Perspective view

Tube 3-45 between Hose joint

Hose joint

 

and Carburetor

 

 

 

Tube 3-35 from

 

Lead unit (B) between Contact

 

Lead unit (A)

Carburetor

Hose joint to

spring and Ignition oil

 

Filter bracket

 

 

 

Tube 3-300 between

Lead unit (A) must be routed

 

Carburetor and

 

Gasoline filter in

under these ribs.

 

 

 

 

Tank complete

 

 

 

Contact spring on Lead unit

 

Tube 3-190

 

(Refer to Fig. 39.)

(B) end must be inserted

 

 

into these notches of ribs.

 

Tube 3-120 between

 

 

 

Primer pump and

 

 

 

Grommet on

 

Plate on Switch lever

 

Tank complete

 

 

Tube 3-190 between

 

 

 

 

 

 

Primer pump and

 

Choke linkage Throttle linkage

Carburetor

 

 

 

(Refer to Fig. 39.)

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Image 11
Makita EK7650H, EK7651H dimensions Adjustment of Carburetor After Replacement, Assembling
Page 10 Page 12

EK7650H, EK7651H specifications

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