carb

lol. no. stock is 26, i think it will fit somewhere around a 30mm, your gonna need a bigger carb-to-reed boot and you'll have to figure something out for the airbox side... either aftermarket airbox or cut the boot back some and put a piece of larger pipe with a 1 1/2" fernco or something.
 
Right stock is 26mm biggest I've seen that will fit stock boots is 30mm which is a 28mm pwk body honed to 30mm. Its a little tricky to get them in the stock boots but nothing a little heat won;t fix.