Yamaha XC50V Service Manual page 233

1
2
6
1
3
4
2
6. Check:
2
7. Check:
8. Check:
1
9. Check:
5
10. Check:
11. Check:
7-5
CARBURETOR
8 needle valve
Damage/obstruction/wear
8 piston valve 1
Damage/scratches/wear
8 piston valve diaphragm 2
Cracks/tears Replace.
8 vacuum chamber cover 1
8 piston valve spring 2
Cracks/damage
8jet needle 1
8main jet 2
8main nozzle 3
8slow air jet 4
8slow jet 5
8needle jet 6
Bends/damage/wear
Obstruction Clean.
Blow out the jets with compressed air.
8 piston valve movement
Insert the piston valve into the carburetor
body and move it up and down.
Tightness Replace the piston valve.
8 vacuum hoses
8 fuel hoses
Cracks/damage/wear
Obstruction Clean.
Blow out the hoses with compressed air.
CARB
Replace.
Replace.
Replace.
Replace.
Replace.