i would do a search of www.roadracingworld.com
on "tularis." you'll find a few articles, you want the oldest one they have. it should give a college that dr. tuli was involved with it at one time (mit?). go there, get a degree in mechanical engineering, i would think a physics minor would help. look for an opportunity to work for his current employer (or a firm near he current employer) and volunteer
your time to the tularis project. with it being a race team, you'll have an easy time getting through the
then you can take a solid engineering and design background, now including cutting edge motorcycles to one the big4's california design studios and hope that you're penning a new gsx-r, but it'll more likely be the new esteem.
another possibility is look for employment with atk or polaris. they are american companies and would likely design something interesting here in the states.
sorry to sound so dismal, but modern-day (japanese) motorcycles are designed by committee, with a project leader. and that project leader is usually japanese.
some after market companies might have a need for an engineer???