I have a 20 year(about)small(900/750w)Winco generator with a 4 stroke Kaw FA76D flathead engine. Always ran well, but I got behind noticing rust in the fuel tank that got sucked into the carb-plugged the main jet,ect) and shut things down. (parts diagram shows a sock filter on the pickup, but none was on mine)This has a little TK (Japan) diaphram (no float)carb. I had to take it apart to clean up and now having trouble sourcing a new diapram and gaskets as the OE couldn't be saved. This carb actually mounts to the top of the small fuel tank. Any small engine or other guys know? thanks oh-I did get a Por-15 fuel tank sealer and took care of the rusty tank as well as that on a 42 year old motorcycle-looks to be a good product.