With respect, why would you waste time and money on such a thing?
Unless you are an egineer out to prove something (or show off your skills) then find something else to spend your hard earned money on...
Don't forget that Yamaha spent millions on design and research. Best let them decide what's safe and what's not.
The leccy start on the XT6E has never let me down..... (neither has the battery come to think of it).
Triumph Bonneville 800 (2004), Yamaha XT600E (1999), Honda XBR500 (1986).