Makita EB7650TH Technical Information page 19

(5) Also replace Pump diaphragm (O) if there is any deformation or hardening.
(6) Remove Inlet screen (G) while taking care not to deform it and then clean it with carburetor cleaner.
(7) Be sure to use carburetor cleaner to clean the main jet portion at the center.
・Do not use air duster because parts such as Check valve may be damaged if they are cleaned with air duster.
(8) Replace Metering diaphragm gasket (Q) and Pump gasket (F) if possible when you disassemble Carburetor.
Assembly
(1) Make adjustment of Adjust screw for Control cable as shown in Fig. 41.
Fig. 41
Rotor
(2) Check that Rotor contacts the stopper both at idling and full throttle and that the specified rotation speeds (refer to "[3]-10. Completion
Inspection Check Points" [page 28]) are achieved after assembly.
(3) Refer to Fig. 42 for the position to connect each tube to Carburetor.
Fig. 42
Connect the two black tubes to Air cleaner case (a) and
pass them through the cutout hole in Carburetor gasket
(large) (b).
To Rocker arm chamber
(b)
Single
Branch
To Cylinder side
f
Carburetor
(a)
Insert Carburetor gasket
(small) here.
For connecting tubes to Fuel tank,
refer to assembly procedure 7 of "[3]-2.
Blower Section (Band Completes L and
R, Frame and Fan)" (page 12).
Makita Corporation
Primer pump
Tube 3-370 (transparent),
to Fuel tank
Tube 3-370
Insert the two tubes in the
right rib. Place the black one
beneath the transparent one.
Do not use the left side.
P 19/ 35
Tube 3-60 (transparent),
to Carburetor
(black),
to Fuel tank