Yamaha YZ250X 2022 Owner's Service Manual

CARBURETOR7-95. Install:• Pilot jet “1”• Main jet “2”6. Install:• Needle valve “1”• Float “2”• Float pin “3”TIP• After installing the needle valve to the float, in-stall them to the carburetor.• Check the float for smooth movement.7. Install:• Float chamber “1”• Plate “2”• Screw (float chamber) “3”8. Install:• Air vent hose [L = 580 mm (22.8 in)] “1”• Air vent hose [L = 400 mm (15.7 in)] “2”• Overflow hose [L = 280 mm (11.0 in)] “3”• Clamp “4”Refer to “CABLE ROUTING DIAGRAM” onpage 2-15.TIPInstall the air vent hoses and overflow hose tothe carburetor with their ends not having the cuts“a” toward the carburetor.9. Install:• Jet needle “1”• Collar “2”• Spring “3”• Jet needle holder “4”(to the throttle valve “5”)TIPInstall the spring with its smaller dia. “a” facingthe collar.10.Install:• Throttle cable “1”• Locknut “2”• Mixing chamber top “3”• Spring (throttle valve) “4”• Ring “5”• Throttle valve “6”TIP• While compressing the spring, connect thethrottle cable.• Align the projection “a” on the ring with thegroove “b” in the jet needle holder “7”.Locknut (throttle cable carburetorside)4.0 N·m (0.40 kgf·m, 3.0 lb·ft)T R..