Yamaha WaveRunner GP1300R Service Manual page 520

HULL
HOOD
a
HOSES
a
SERVICE POINTS
Check valve inspection
1. Check:
• Check valve
Faulty → Replace.
Checking steps:
• Connect a hose to end "A" of the check
valve, and then blow into the hose.
Air should come out from end "B."
• Connect the hose to end "B" of the check
valve, and then blow into the hose.
Air should not come out from end "A."
Ventilation hose installation
1. Install:
• Ventilation hose
NOTE:
Insert the ventilation hose into the ventilation
fitting until it reaches the bend a in the fitting.
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