I have an older Generac generator with a Brigg Stratton 10 hp motor. I took it out of storage and it needs a carburetor for it. All I have been able to find are Chinese-made carbs. My model #19g412, type 1129 e1, code 971106ye. I have been told the OEM part # is (690115) stamped on the original carburetor is LMT 5-4993 Walbro. Does anyone have one or a substitute? I would hate to have to use some Chinese junk.