Carburetor Inspection; Needle Valve; Throttle Valve - Yamaha TT-R50E Owner's Service Manual

EC464000
INSPECTION
Carburetor
1. Inspect:
NOTE:
• Use a petroleum based solvent for cleaning.
Blow out all passages and jets with com-
pressed air.
• Never use a wire.
2. Inspect:
3
NOTE:
• Use a petroleum based solvent for cleaning.
Blow out all passages and jets with com-
pressed air.
• Never use a wire.

Needle valve

1. Inspect:
EC464301

Throttle valve

1. Check:
1
NOTE:
Insert the throttle valve 1 into the carburetor
body, and check for free movement.
4 - 7
CARBURETOR
• Carburetor body
Contamination → Clean.
• Main jet 1
• Pilot jet 2
• Needle jet 3
Damage → Replace.
Contamination → Clean.
• Needle valve 1
• Valve seat 2
Grooved wear a → Replace.
Dust b → Clean.
• Free movement
Stick → Repair or replace.
ENG