I'd rather drink paint than deal with the pukes at the dealership, so I ordered the fuel pump and gasket online and replaced it myself. The gasket was $67 and the gasket $14.
It's pretty simple to do. I'd rate it a 3 on a scale of 1 to10. 10 being most difficult. The biggest difficulty is removing everything to take out the fuel tank.
I only took pictures after I was finished. Keep in mind, your scoot will be disassembled at some stages shown. Maybe some one can do a better write up in the future, but this may help some people.
phillips screw drivers
allen wrenches (T handle preferred)
torx T25 screwdriver (really the only special/odd tool needed)
Service Manual (the info in the manual is very basic, but offers some helpful information)
-remove the seat and plastics need to access the fuel tank
The fuel tank is under the storage tub, so this needs to come out.
The red arrow shows one of the two Torx heads.
The only way I could remove this plastic piece (gold arrow) around the fuel cap was by unbolting the fuel cap assembly (purple arrow). This is where the T handle allen wrenches are needed.
-dissconnect the lines to the fuel tank.
A. vent line on the top of the tank. This is easy to disconnect.
B. electric connection under tank.
C. fuel line connection under tank.
The gold arrow points to the fuel line. The red arrow points to the fuel line connector.
Here is a zoomed in photo.
The red arrow points to the fuel line connector. The blue arrow points to the white plastic fuel pump. The green arrow points to electric connection.
To release the fuel line connecter, pull down on the plastic "U" and push in both buttons. There will be a little fuel in the line, but since the pump doesn't work the rest of the fuel is staying in the tank.
To release the electric connection, gently pry the side tabs out and pull hinged plastic down. With the hinged piece out of the way, the connection will just slide off.
Here is another photo of the same area, looking up from the ground.
The red arrow points to the fuel line connector. The green arrow points to electric connection.
Note the blue arrow points to a nub on the white plastic fuel pump which lines up with a notch in the steel ring that bolts the pump into the tank.
-unbolt the fuel tank and drain the fuel.
-look at the underside of the tank and the fuel pump. Not how the pump is lined up with the notch noted above.
-unbolt the ring holding the fuel pump in the tank.
-note how the gasket is aligned with the fuel pump and which gasket side is up.
-remove the fuel pump and gasket.
This is the evil little Chinese beasty with the gasket.
Here is a close up of the bad fuel pump.
The red arrow points to where the fuel line connects. The green arrow points to electric connection. The blue arrow points to a nub on the white plastic fuel pump which lines up with a notch in the steel ring
-install the new fuel pump and gasket. The service manual states you should install a new gasket with the pump and it doesn't cost much.
-Reinstall the fuel tank
-Reconnect the lines to the fuel pump and tank.
-reinstall the plastics and seat.
The seat was the only headache. It takes a few attempts to get the alignment correct. The seat needs to be unbolted, then adjust the seat mounting plate. Check alignment when closing the seat. Unbolt the seat and adjust the mounting plate if needed.
-ride around smiling and cursing Yamaha for installing a junk fuel pump