Wont Run Without Choke

[Buzz]

but always start every now and again and let run for 20 mins or so.

Wasn't there a discussion about this "start the bike every week over winter" issue a few months ago?  I thought it was one of the worst things you could do to a stored motorcycle as because the engine never gets to full temperature it promotes condensation in the exhaust, incomplete fuel combustion in the chamber and so leads to dirty plugs and coated cylinders.