Theres TWO (2) O-rings inside the fitting. One deeeeeep inside, and the one you see.
You can replace only the O-rings. A small, bent paperclip helps in removing the one deep inside.
Replace with Viton or Nitril, NOT NATURAL RUBBER.
Tools are also made to do it easily. (Fuel-Tool $80)
Amazon.com: Fuel Tool EFI Check Valve Lower O-Ring MC200: Automotive
Fuel Tool EFI Check Valve Rebuild Kit - BikeBandit.com
You can replace only the O-rings. A small, bent paperclip helps in removing the one deep inside.
Replace with Viton or Nitril, NOT NATURAL RUBBER.
Tools are also made to do it easily. (Fuel-Tool $80)
Amazon.com: Fuel Tool EFI Check Valve Lower O-Ring MC200: Automotive
Fuel Tool EFI Check Valve Rebuild Kit - BikeBandit.com