300ex runs like crap

[jvd182]

When i go up hills it seems that my 4w always lugs out and i get killed when i am racing because of it and i always have to down shift and that lugs out and i am no way slow i used to be able to win my class but the second we hit the hills i just get passed like im standing still, and also were is the air/fuel screw on the carburater (sp)?

[300exryder03]

first of all wut all kind of mods are u running on it ? and what is ur jetting? also the air fuel mixure screw is located on the bottom of the carburator.

[jvd182]

im running a yoshi slip with wb headpipe, and a clean k@n with outwears with no lid.

[300exrider05]

did you rejet it because if not thats why?i have to rejet mine.

[IOWAracer]

I doubt it s the same as mine but on my warrior I took a practise lap at Newark Mo last weekend and when I came in it was running fine we started I got third from the holshot got to the woods and it would lug it evently started ding when i got home I wen to find out i took of the air boot to the air box and pushed the throttle in and there was a piece of grass in my carb:eek2: it was about 4inches long i took it out and it ran like a champ no idea how it got in there or anything well i think if you didnt jet it that is ur prob.

Broc Bromley #128