this reply is 'probly too late, but adding to Ian's sage advice, make sure the vent tube doesn't get pinched in the mounting saddles. Easy to do and then you'll wonder why your bike sputters and dies.

2005 Model . Two Fast Eddy stickers , a bell and a clock . She's Lola . She tinkles and keeps time . http://s649.photobucket.com/albums/uu211/britbike05/