R/C Nitro car novice needs help w/ idle speed adjustment.

hey guys..i just got a nitro 4x4 offroad buggy from my big bro for xmas. i used to have an Enzo 4x4 onroad car but my bro let it get out of range and it went HEAD ON INTO A CURB AT FULL SPEED. completely destroying everything but the engine.

here are a few pics of the buggy:

http://files.automotiveforums.com/gallery/watermark.php?file=/502/476145Image0023-med.jpg

http://files.automotiveforums.com/gallery/watermark.php?file=/503/476145Image0026-med.jpg

http://files.automotiveforums.com/gallery/watermark.php?file=/503/476145rccar-med.JPG
Check the suspension travel. it can lay frame! lol

now on to my question:

I was in the process of adjusting the idle speed...and i tell ya i had it AALLMOST perfect. so i backed out the screw another 1/8 turn. when i started the engine again...the idle speed for some reason seemed to jump way up...as if i was trying to increase the idle speed. but i wasnt. i backed out the screw again another 1/8 turn, started it, and the same thing happened. after this i put everything back in the garage to let the engine cool...since i was still breaking in the engine.

if it means anything, i had the car on the ground. the car just vibrates off of a brick...and i tried c-clamping it to the frame of my dad's utility trailer(like i did with my old one) but there wasnt enough room for the c-clamp w/ out blocking the steering servos.

u guys are OBVIOUSLY alot more expierenced than i am, and i GREATLY appreciate any help u can offer. THANX!

are you sure you touched the idle and not the low speed needle? sounds like you leaned the low end, which would cause the idle to jump.

I say this because you said you backed out the screw, backing out the screw would lower the idle (not raise it).

are you sure you touched the idle and not the low speed needle? sounds like you leaned the low end, which would cause the idle to jump.

I say this because you said you backed out the screw, backing out the screw would lower the idle (not raise it).

thanx...yeah im sure i was doin the idle speed. i took the car to the local hobby shop to figure out why it wouldnt start and the guy tweaked the low speed adjustment. i havent touche the low speed. thanx