Original carburetor for 07-12' YFM400 Big Bear 4WD. Code stamp 4S11 10. It is complete and everything is OEM Mikuni and looks to be all stock sizes. Has pilot jet #17.5, main jet #112.5, and jet needle 5EP9-55. O-ring on float seat should probably be replaced, otherwise just snug the jets/screws and ajdust the pilot screw and i believe this carb is bolt and go ready. No notable wear or damage anywhere, jet needle is perfect, both diaphragms are nice and soft, no holes of course, all threads and mating surfaces are good, smooth slide and throttle shaft movement, nothing stuck, no cracks/leaks in bowl overflow tube, good tip and spring button on float needle etc etc.. applicable parts were sonic cleaned, all ports passages have been sprayed out with carb cleaner and are clear. Very nice carb here. Ships assembled. Heater element is untested. Please check pics for more info on condition. What you see is what you get. Any questions feel free to ask, thanks -phil
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