Yo a lo que me referia es a esto.
Adding a Header Tank
I alway like to fly with a header tank that shows fuel levels and helps even out the flow.
The 600n boasts of a design that makes the header tank redundent.
I still wanted to fit one and chose the Quick UK one that come with the very nice CNC metal bracket
in a choose of colours.
Here are the parts needed, the spacer, 5.5mm hex bar is turned on a lathe to make the 3 x 8mm
thread at one end and a tapped 3 x 10mm deep hole the other. Hex part is 26mm long.
The drop plate has two holes 11mm apart.
Remove one main bearing holder bolt.
Fit the spacer in to the main bearing block with loctite.
Bolt the 11mm drop down plate onto the tank bracket with a nyloc at the back.
Using the original bearing block screw, fit the drop down plate/tank to the spacer.
Here it is all ready to be piped up.
If you do not have access to a lathe you can still make a spacer up,
drill a 3mm hold close to the bearing block and attach with a 3mm cap head from the back.
The 11mm drop plate is just a metal plate with two holes 11mm apart. This plate keeps the header
at the same height as the main tank, in line with the carb.
Fuente:
http://www.ukheli.com/nheader.htm