3.5 float valve seat kit. We are Keihin , Mikuni and Lectron dealer - we're here to help.Don't forget to check out our other items and be sure to add me to your favorites list! We are Keihin and Mikuni dealer. We offer genuine , high quality racing parts and carburetors , as well as rebuild services and related services. Questions about parts, carburetors or one of our services? MXParts: your #1 source for Keihin FCR carburetors and parts! The item "Mikuni TMX38 flatslide carburetor 1989-1994 Yamaha YZ 250 YZ250 / TM TMX 38 NEW" is in sale since Thursday, November 15, 2018. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Air Intake & Fuel Delivery\Other Intake & Fuel Systems"." and is located in Hengelo OV. This item can be shipped worldwide.