Yamaha WaveRunner GP1300R Service Manual page 89

FUEL
OIL PUMP
SERVICE POINTS
Oil pump inspection
1. Check:
• Oil pump
Contaminants → Clean.
Damage/wear → Replace.
• Oil pump joint piece
Damage/wear → Replace the oil pump.
Oil hose inspection
1. Check:
• Oil hoses
Cracks/damage → Replace.
CAUTION:
• If the oil delivery hoses and the oil suc-
tion hose are not full of oil, fill them up.
• Bleed the oil pump, delivery hoses, and
oil suction hose after installing them.
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."
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