JEREMY here, giving some basic details on what I'm looking to do, and with what... I have a 1/3rd scale Yamaha R1 (known as an X7 Bullet) that I've gutted and custom-installed a Yamaha KT100S kart racing engine into. This engine pushing a 400lb load has easily broke 120 mph on the kart. Now that it is only pushing a 300lb load I'm hoping to run her out to 150 or better if she holds together! I do not know how the 'classes' are designated and need to find out what all of this is about so that I can see if I qualify to make a pass and get into the books. I truly believe I own "the world's fastest weedeater"!!! This bike is the only fully plated 50-state legal and insured mini pocket rocket in Indiana at this time, and I've rode her for 2 years with the stocker (50cc) until I decided that "Stock isn't good enough!" and bought me the KT100S that's dynoed out at over 17.5hp @ 15,200rpm compared to 5.2hp stock. As you guys can understand, these are SERIOUS numbers and providing I can get it into the proper class I'd love nothing greater than to count myself in the ranks of the fastest in the world! I have done all of the reengineering and modifications myself to make this possible, and she's VERY close to being finished with the new engine install and I'm eager as hell to get her out and run!!! So, I'm seeking knowledgable input to help/teach me just 'what' I now have, and what I'll need to do to make my run a reality.