Review on 🔧 Lower O-Ring for Fuel Tool EFI Check Valve MC200-5 by Paul Tucker

Bought these and Uxcell Nitrile O-rings at the same time because of a previous post I read. That poster was absolutely correct. Fuel tools are flimsy and almost impossible to install while the check valve is on the bike without the $100 installation tool. Look for uxcell nitrile o ring 14mm od diameter x 10mm I would go for 2mm thickness and you can get a pack of 20 for less than 5 fueltools and they actually hold their shape better making them compatible with normal ones tools such as the 9/32 head can be installed. and a tooth-like tool to guide it into the check valve voice. I did it, they are great and I threw another (19) in my touring backpack for no good reason.