Makita EK7650H, EK7651H dimensions P, 4DISASSEMBLY/ASSEMBLY 4-5.Carburetor cont, Repair

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.)