How to Deal with Oil Leakage from the Carburetor Exhaust Pipe?
2 Answers
Clean the float needle and fuel inlet pipeline. If the float is damaged, it can be replaced, or the gasoline inside the float can be shaken out and then soldered with a soldering iron. Replace with qualified float needle and needle seat components. For non-replaceable tightly fitted die-cast float needle seats, only the rubber-tipped float needle can be replaced.
That morning when I was driving to work, I noticed oil stains under the carburetor exhaust pipe, which were visibly dripping onto the ground. I quickly turned off the engine to check and found out from some research that this usually has several causes: the float chamber fuel level was set too high, causing overflow due to high oil pressure; the needle valve was stuck and couldn’t close tightly, or there were impurities inside; or the carburetor base gasket was aged and cracked, leading to oil leakage. I didn’t pay attention to these during my last maintenance, so it seems I’ll have to adjust it myself. First, I’ll try to disassemble the carburetor, inspect the needle valve and filter screen, clean them thoroughly, and then reassemble everything, also lowering the float height a bit. If it still leaks, I’ll have to replace the gasket—these parts are available at hardware stores, and doing it myself saves half the cost compared to a repair shop. However, I should wear gloves while working since gasoline is highly corrosive, and remember to wash my hands with soap afterward.
