Hello, im riding a 2003 DRZ 250 and i weigh 155 lbs. I want to start jumping, what is an easy one to try and build confidence on and will my suspension be able 2 handle much jumping?

I would start with jumping Tabletops. That will allow you to get the feel of taking off and how the bike reacts in the air without having the fear of coming up short. Start out slow and work up to clearing it. This will also let you see how much your bike can handle as far as the suspension.

how big of a table top would you recomend to start on?

Find one that's like 10' on top or so. That way you'll progress to the landing quickly. 20's and 30's will soon follow and so on...

Is there anything i should know before doing this besides nail the throttle before i leave the jump or will the rest just come natrual?

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Uhh... yeah... don't nail the throttle before you leave the jump. If you're just learning, take it easy and learn the feel of the bike in the air.  

Edit: Wait... you said you ride a DRZ250? PIN IT!!!!   (just kidding)

dont chop the throttle on the face of a jump either

What about hitting the throttle in the air or hitting the front brake in the air? I don't jump...yet, but I do know that these will allow you to change the position of your bike in the air. I do jump tabletops with skis, and I know that you definately do not want to come up short because all the force will be directed up into your body, what about motorcycles, will the bikes suspension bottom out if you land flat on the top of the table top? Will you bang your head?

Yeah with a 4 stroke you don't want to get off the throttle when you hit the jump.  If you do you will drop the front wheel down and risk  going over the bars.  Been there done that:)

Don't want to open it too much because you can land on the rear fender. Saw one guy do it one time, he didnt care. He had no eshaust anyways, just the headpipe.

Good steady throttle all the way until you are in the air, like was said above don't chop the throttle you have to keep the power on until the back tire leaves the ground.
Just take it slow
Have fun

Build up momentum before the jump so that you don't need to stay on the throttle up the face of it. This allows me to get a neutral position in the air (front not too high, not too low) and was much easier to begin.

I just got a YZ450F, and it's the first bike in about 2 years I have really ridden. Yesterday (the first day I got it) I started off jumping 10-20 foot tables and then worked my way up to doubles. Jump the table tops as many times as it takes for you to be confident about what is going to happen when you leave the ground. It might take 20 times, or it might take 100 times. Just don't rush it.

I am already feeling right at home on my YZ450. By the end of today I should be jumping the 45 foot double at our track. The confidence comes a little easier for me because I was jumping a YFZ450 quad over all these jumps in the past.

Gear up and stay safe.

Since the DRZ is a trail oriented machine you'll probably want to stiffen the compression and rebound damping on the rear shock, and the compression on the forks for jumping.

Especially if you are landing nose 1st when you don't want to. At the very least it will help prevent bottoming on the suspension on the landings.

Take a video cam and play back your jumps in slow mo or better yet frame by frame. You'll see all kinds of stuff you'd never know about otherwise.

on the front i have the screws turned all the way to the h for hard, and the rear screw in in between the S(soft) and H(hard), im pretty satisfied with the way this feels. Now i just have to wait and see how much dirt i have to build the jump.

Good luck and post some pics

Take your time and learn. This past weekend a kid that rides with us tried a double,Not enough speed,cased it,now a leg broken in 3 places and a broken nose and eyesocket..Take your time and learn it right.

was the kid not wearing a helment???

hey guys on a big jump riding a 4-stroke, do you tap the rear break to bring the front wheel down (assuming it need to come down)just before you land or do you do it about mid jump in the air?Also how much effect does letting off of the gas in the air effect dropping the front wheel as apposed to rear break on a 4 stroke?

I don't do too many "big" jumps, but I would anticipate that about halfway through the air, at your highest point, you get a real good idea of what  your attitude is like. This would be the time to make corrections with the brake(front end too high) or a little blip of the throttle(front end too low).

He was wearing a helmet, didn't even break his goggles.He "cased" the landing and his foot came off the peg and the bike went down on his leg and his face smashed into the crossbar.Not a pretty site.He was trying something he had never attempted before.Not a good idea.