Makita EM2650UH Technical Information page 10

R
epair
[4] DISASSEMBLY/ASSEMBLY
[4]-10. Carburetor
DISASSEMBLING
(1) Remove Cleaner cover assembly. (Fig. 44)
(2) Remove Air cleaner element. (Fig. 45)
(3) Remove two M5x60 Hex. socket head bolts for fastening
Carburetor and Cleaner plate assembly to Insulator.
Note: Carburetor can not removed before the bolts are removed
completely.
(4) Disconnect two tubes from Carburetor, then remove it.
CLEANING / MAINTENANCE
Refer to Fig. 46.
(1) Remove four 3x24 Tapping screws, then separate Metering diaphragm and Metering diaphragm gasket.
Note: In case Metering diaphragm remains attached to the others in disassembling of Carburetor, be careful to remove
Metering diaphragm and gasket. It is fragile.
(2) Replace Metering diaphragm when the following problems happen:
• slackened • hardened • worn / debased
(3) Loosen M3x4 screw in Pump body to remove Inlet needle and Control lever etc. (Refer to Fig. 47) from Carburetor.
(4) Before assembling Pump body, check that the top of Inlet needle is not deformed / worn out. (Fig. 48).
(5) When Control lever is set in place, make sure that Spring is put properly as drawn in Fig. 49.
(6) Regarding three M3x8 Pan head screws with washers, loosen Idling screw fully first, and then remove them.
(7) After checking if Inlet screen is clogged with dust, fit it into Pump body.
(8) Spray carburetor cleaner each route in Carburetor and then clean it with gasoline after a few minutes.
Fig. 46
Pump body
(M3x4 + screw
is included.)
Metering
diaphragm
gasket
Metering
diaphragm
Air purge body
Primer pump
Fig. 48
Normal Out of order
Carburetor
M3x8 Pan head screw
with washer
(2pcs.)
Inlet
screen
(Throttle valve
assembly)
Conical
compression
spring 5-9
Primer pump
cover
3x24 Tapping
screw (4pcs.)
Fig. 44
Air cleaner
element
Fig. 47
Control lever
Swivel
M3x4 + screw
Washer
Stop ring
E-3
Pin
Idling screw
Fig. 49
O ring 2
Jet
Out of order
Pump gasket
Pump
diaphragm
Dust in Pump
body causes
the leakage of
pressure.
P 10/ 14
Fig. 45
M5x60 Hex. socket button
head bolts are completely
removed.
Spring
Inlet needle
Note:
These items can
not be supplied
solely.
Order Pump body
to replace them.
Normal