On Sun, 5 Aug 2007 20:53:03 +0100, Mike wrote:

If it is the sponge type without the cardboard stifeners/case etc, then
I would wash it out in hot soapy water. It needs to be clean to allow
the air to go through, leave a film of oil in it and it will clog again.

They vary. A plain foam filter without oil won't trap the fine muck that
blocks up carbs. It doesn't want to to be dripping in oil though just have
a film of oil to trap the tiny bits of dust.

You can run the engine without the air filter and that should prove one
way or the other. If it runs OK without the filter but not with it,
there is your problem ........ 'sort of' because you are now down to
tuning.

And the filter being there or not even a proper one will affect the vacuum
and thus the mixture, though if it runs a lot better at highre revs
without the filter it is a pretty good indication that not enough air is
being allowed in.

Has the OP done a google on Teuschmesh(sp) engines? I wouldn't be
surprised to find the manual online somewhere.

--
Cheers
Dave. pam is missing e-mail