Tell you what I did. Went to local parts store and found a metal fuel filter the OD that I needed. It had a pressed on flare at one end. Cut the tube as needed and make a plate that is a mirror image of outside of your carb. Slide filter tube into it and put carb mtg. screws thru plate. Adjust as needed. Must say I didn't notice any difference on a Homey 45cc, but looked neat. Good luck, red