shimming

I have some carb needle shim washers that I use every now and then on other projects. Question- can I slide 1 thin shim under the needle and get away with it and not cause any other problems ? I am running stock jets. Will it help on top-end pull, or is it just a bunch of trouble ?

I've been researching how to do this. From what I'm reading its not all that hard, but I tend to do best with pictures. I can't find any. Is there any on here I'm missing.

Got the marks pipes installed, and pulled the slides to shim the needles but I am having a problem. Everything fits fine until I put the small spring and keeper screw in place. When I tighten the keeper screw, it makes the needle tight and therefore makes the slide tight when I install it in the...

:ummm: I would like to thank everyone for guiding me to this point, but I still need carb help. Have an 07 Max with 2K on the clock. Everything is stock except for the below listed mods. I noticed after I installed the exhaust and air filter that it seemed to be running lean around 4K or so...

If I modify my stock exhaust on my '96 Max ( either drilling the endcaps or a 1 inch hole in center baffle ), I understand this will lean out my motor & kill my low/midrange . Can I simply simply shim the needles ( maybe about 1 mm ) to make this up , or is it much more involved than that ?