Did you search this forum? There used to be a lot of good info on suspension, but I think it was lost when switching to the new forum.
Read
this link It has a lot of good info.
The first thing you need to do is set sag, which may not be possible with the stock suspension, especially the forks, since the stock springs are probably too light for your weight, unless you're 140lbs or less.
The front sag should be 36-38mm and the rear should be 26-28mm. To measure it, you'll need some friends to lift the bike up, so you measure with the suspension fully extended. Next, with your friends supporting the bike, sit on it with full gear. Pump the forks a few times. Then, place your feet on the pegs, and have someone measure again. This is the sag, and it should be between the numbers listed above. If it's not, adjust it with the preload adjusters (top of the forks, need a wrench. Rear, need the tool in the toolkit to move it). On the forks, measure the distance between the dust seals. On the rear shock, measure the distance between the rear axle and a fixed point on the tail section directly above it.
For starters, set all compression and rebound settings to 1.25 - 1.5 turns out from full tight. (full tight is turned all the way in to the right (clockwise)). Turn out the specified number of turns by turning the screw to the left (counterclockwise). Careful with the screws, they are delicate.
Hope this helps some.