I miss riding and tinkering on 2 strokes   It's fun to see how fast you can rebuild one! 

My friend had an early 90s kx500 several years ago and let me ride it.  I'm 5'3" and maybe weighed 130 at that time.  You can guess the chaos that ensued   Let's just say 1st through 3rd were completely useless for me!  I started off in 1st on the pipe, kept it on the pipe through 5th and it absolutely wouldn't hook up for me.  I could only ride it for maybe 10 minutes before arm pump took over and my arms would get rock hard!