Yamaha RX10H Service Manual page 236

CARBURETORS
8. Inspect:
S Piston valve 1
Damage/scratches/wear ! Replace.
S Rubber diaphragm 2
Cracks/tears ! Replace.
9. Inspect:
S Vacuum chamber cover 1
S Piston valve spring 2
S Jet needle holder 3
Cracks/damage ! Replace.
10. Inspect:
S Jet needle kit 1
S Starter jet 2
S Main jet 3
S Main jet holder 4
S Pilot jet 5
S Pilot screw 6
S Needle jet 7
S Pilot air jet 8
Bends/damage/wear ! Replace.
Obstruction ! Clean.
Blow out the jets with compressed air.
11. Inspect:
S Piston valve movement
Insert the piston valve into the carburetor
body and move it up and down.
Tightness ! Replace the piston valve.
12. Inspect:
S Fuel feed pipes
S Hose joint
Cracks/damage ! Replace.
Obstruction ! Clean.
Blow out the pipes with compressed air.
13. Inspect:
S Fuel feed hoses
S Fuel hoses
Cracks/damage/wear ! Replace.
Obstruction ! Clean.
Blow out the hoses with compressed air.
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CARB