Yamaha WR250F(N) Owner's Service Manual page 302

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CARBURETOR
19. Install:
Carburetor breather hose 1
NOTE:
Install the carburetor breather hoses to the
carburetor so that the hoses do not bend near
where they are installed.
Carburetor installation
1. Install:
Clamp 1
NOTE:
Install the projections a on the carburetor joint
between the clamp ends.
2. Install:
Carburetor joint 1
3 Nm (0.3 m · kg, 2.2 ft · lb)
NOTE:
Install the projection a on the cylinder head
between the carburetor joint slots b.
3. Install:
Carburetor 1
NOTE:
Install the projection between the carburetor
joint slots.
4. Tighten:
Screw (air filter joint) 1
3 Nm (0.3 m · kg, 2.2 ft · lb)
Screw (carburetor joint) 2
3 Nm (0.3 m · kg, 2.2 ft · lb)
ENG