First thing I'd do is fill up to 180/200 then check for leaks.
Just in case you've not done it before .
One at a time you dab (with a artist paintbrush) some water mixed with a drop of washing up liquid all around the joint of the filler assembly /cylinder , the filler cap/ filler assembly joint and finally at the cylinder /action joint. If there is a leak you will see bubbles. Once you have checked for leaks make sure you thoroughly wipe off all the soapy water and wipe with an oily cloth to prevent rust spots.
Last edited by Chris58b; 24th July 2015 at 01:54 PM.