change your sprockets at the same time
and start using an oiler or lots of lube
shout me if you need a dig out
try this link out its for a rear tyre but its close
http://www.rahji.com/rearwheel.php3
the only difference is cut the chain or take out the link if it has one and get a soft rivit link to put it together with
if your just gonna do the chain it will take you about 20 mins tops,
( no dismantling whatsoever)
that includes a cup of tea