Originally Posted by Mudguts
Here's my little helper getting it into position for you.
Say thanks to your helper ...
There's an "O" ring underneath the flange ??? I'm asking because I know previous tanks (let's call EVO 1), while they had this flanged aluminium neck filler type (very early models), were leaking. However, the plastic base this aluminium filler neck is bolted today on seems more rigid.