i got this trx 200 but i dont know how 2 put it in reverse i think there is a switch or something missing any body know???

 

On the left side of your handlebars it's either your front or rear brakes..
there's a button there... push on the brake and the button at the same time and shift down all at the same time... you should go in reverse and when you wanna go forward push on the gears up and it should go in N.
Play around with it and you will get it!

 

 

1986-88 TRX200SX & 1990-97 TRX200D use the red button on the rear brake lever , which you push down then squeeze the rear brake lever and click down on the gear shift for reverse ..