Ok so today I pulled the carby off my gq and gave it a good clean out. I pulled it all apart and replaced all the gaskets as I went. When I put it all together and fired it up there is something wrong. It idles either way too fast or a little too slow depending on the position of the fast idle cam however adjusting the idle speed screw had no effect. I have been playing around with it all day but just can't work out what I've done wrong