Just for Reference I bought what looks like the same toy model Kurt used for the tutorial. It was only $6.99 at KB-Toys. Having this model makes it a lot easier to finish off some of the detail stuff Kurt left off, it also makes the shape of the gas tank more apparent.
I found it online at this site:
They also have some other nice bikes that might make for a follow on project to practice.
I bought a cool 1:6 BMW for my next project after I finish the yamaha.