I've been thinking about motocross racing bikes, I raced quads and that was fun but now i want to try something new. I was wondering if it would be possible to make my wr more like a yz with suspension and engine work? I can't afford to go buy a yz (i work at the local grocery store lol) or else i would and at the time when i bought the bike i wasn't interested in racing. any tips????? any way to make the bike lighter?