Matty,

The center feed (from the bottle cap) goes to your fuel pump with 6mm tubing. The fuel pump nipple only accepts 4mm tubing so mount a 1/2" piece of 4mm tubing onto the fuel pump input nipple, then slide the 6mm fuel tubing over this and secure with locking wire.

Now for the other nipples on the UAT: one is for re-fuelling and the other goes to your main tank (or two saddle tanks via a "T" piece). If you are using two saddle tanks you must make sure that the fuel tubing is exactly the same I.D and the length is also exactly the same otherwise only one tank will drain.

Regarding the re-fuelling nipple just connect a 6" piece of tygon and plug the other end with a aluminum fuel stopper.

The big importance of the UAT is to bleed all the air from it when you first use it, and I mean "all the air". To do this disconnect the fuel line between the fuel pump and turbine, fill your tanks, connect the GSU and manually operate the fuel pump to a fairly high voltage (simulating high turbine power settings for the fuel pump), and tap the UAT continuously which will bleed it.

Once the UAT is air free never empty it below about 4/5ths.

I hope this helps.

Regards,

Darryl