the clip is not in th float bowl it is on th slider for the throttle take that apart and you will find the needle on the slider....also you air mixer is on the side of the carb leftside or right side since I have no picutre......
follow the throttle cable un screw the top and you will see the needle you will need to un do the cable then the will be a keep to hold the need down un screw that then you will have the whole need in your hand with the clip and the will be maybe 5 or 6 different adjustments.....the lower the clip the more fuel the shorter the needle set's in the main....I hope you get it.