Checking The Reed Valve; Installing The Reed Valve; Assembling The Carburetor - Yamaha YZ125 2022 Owner's Service Manual

2
8. Check:
• Free movement
Stick  Repair or replace.
TIP
Insert the throttle valve "2" into the carburetor
body while pulling up the lever "1", and check for
free movement.
9. Check:
• Hose joint
Cracks/damage  Replace.
10.Check:
• Air vent hose
• Fuel hose
Cracks/damage/wear  Replace.
Obstruction  Clean.
Blow out the hoses with compressed air.
EAM30574

CHECKING THE REED VALVE

1. Check:
• Reed valve assembly
Cracks/chipping  Replace.
2. Measure:
• Reed valve thickness "a"
Out of limit  Replace.
Thickness
0.400 mm (0.0157 in)
3
4
EAM30577

INSTALLING THE REED VALVE

1. Install:
• Gasket
New
• Reed valve assembly "1"
2. Install:
• Carburetor joint "1"
• Carburetor joint bolt "2"
TIP
Install the gasket so that the projection "a" is di-
rected as shown.
Carburetor joint bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
1 a
2 2
EAM30576

ASSEMBLING THE CARBURETOR

1. Install:
• Power jet "1"
(to the carburetor "2")
7-7
CARBURETOR
a
a
1
2 2
1 1