Okay, so I moved my needle down or moved my clip up two notches how ever you want to look at it. So now I am having a tuff time trying figure out if I changed my bottom or top. What end does moving the needle affect? I know my bottom has a lean condition but since I moved the needle it seems to have cleaned up a messy condition I have been having from 1/8 up to 1/2 throttle. Oh and I have a 01 rm 250 with 46 p 162 m air screw 2 turns choke idle 12 clicks out fresh top end and drool dripping out the pipe? It seems to run Lean on bottom and rich on top.
RM250 carb needle
- Thread starter jackson409
- Start date
James
Staff member
I believe I ride below 700ft sea level mostly my jetting is what I believe to be stock at 46 p 162 m. I have the air screw turned out two full turns and the choke idle out 12 clicks. I my concern isn't so much the rich as it is the lean. I have never fouled a plug but I had a very messy throttle response 1/8 up to 1/2 and was told to drop the needle to lean it out as I was running too rich causing that. It definitely help the messy throttle but I still get tons of spooge but think this is more of a factor not being on the pipe enough as I trail ride allot. My main issue is I think it is too lean on the bottom as it has a bad surging idle after I ride it for a while. It idles like a champ on first start up and will lug with the best of them.
Oh and I run 32:1 full syn.