Thanks Dave and Martin for responses.
UPDATE

Not sure that the bits will get hot enough hot over a barbie. I'd expect
to find a little indentation or spoon to hold about a table spoon full of
meths some where near the jet/coiled pipe.

Light the meths and when it's almost all burnt turn on the valve slowly,
the burning meths should ignite the vapour.

You way runs the very real risk of either have a jet of hot(ish) liquid
parafin or clouds of vapour (whumpf!) or something inbetween (20' flame
thrower).


I've just taken it apart and cleaned it.
Not in bad nick.
I find a wick laying around the coil and jet.
As such, I guess the technique is to soak the wick in meths, ignite
the wick, then proceed after the meths is about gone.

Cleanliness points noted re jet and paraffin quality.
I've just poked around in the jet with a paper clip.

I'll give it a go tomorrow.
If OK, it's a good 20 pounds worth - they sell for ~145 online !

Cheers,
Jim