Yamaha YZ250F Owner's Service Manual page 114

2
1
3 4
1
Starter plunger
1. Inspect:
Accelerator pump
1. Inspect:
2. Inspect:
6
5
ASSEMBLY AND INSTALLATION
Carburetor
1. Install:
2. Install:
4 - 14
CARBURETOR
• Cold starter plunger 1
• Hot starter plunger 2
Wear/damage → Replace.
• Diaphragm (accelerator pump) 1
• Spring (accelerator pump) 2
• Accelerator pump cover 3
• O-ring 4
• Push rod 5
Tears (diaphragm)/damage → Replace.
Dirt → Clean.
• Throttle shaft 1
• Spring 2
• Lever 1 3
• Spring 1 4
• Lever 2 5
• Spring 2 6
Dirt → Clean.
• Cold starter plunger 1
• Pilot air jet 1
ENG