That kit is for 10mm cranks only, I think yours has a 12 or 13mm. Has anyone seen reviews on that kit anywhere? I would try to get a used lc set up from the zuma forums for next to nothing. Ill give you a link to another guy who did efi and LC conversion on his zuma.
http://www.scootforum.com/viewtopic....st=0&sk=t&sd=a