Checking The Check Valve - Yamaha Z200N Service Manual

FUEL
LOW-PRESSURE FUEL LINE
4230

CHECKING THE CHECK VALVE

Check:
• Check valve operation
Damage/reverse air flow → Replace.
Checking steps
NOTE:
Do not overpressurize the check valve.
Excessive pressure may cause air to leak
out.
(1) Install the Mity vac onto the check
valve as shown.
Mity vac
YB-35956 / 90890-06756
(2) Apply the specified pressure with the
Mity vac.
Check valve pressure
80 kPa (0.8 kg/cm
NOTE:
Make sure no air comes out of the opposite
side of the check valve.
4-45
E
4
2
, 11.4 psi)