Review on Honda 91231-891-003 Oil Seal (6X11X4): Genuine Replacement Part for Honda Engines by Mark Green

I bought this small O-ring seal for my Honda washing machine. My engine kept leaking very slowly and I couldn't figure out why. So I searched on YouTube and a very nice person posted a video about exactly this problem with all Honda vertical engines. Unfortunately, all of these engines do not come with a small O-ring, a seal provided by the manufacturer. I suspect Honda is trying to save pennies. The gasket is a little pricey for its size considering it only cost about 5 cents to make, but it was very easy to install and stopped every engine oil leak. Anyone reading this if you are wondering where the leak is coming from there is a precision round hole from the regulator bracket on the engine to ensure the little gasket fits perfectly, that is where your oil leak is slowly coming out. You must remove the air filter assembly. Once you've done this you can see the regulator port with a small hole for this gasket. You can search YouTube and find a video about this issue and how to install it. It's very easy and takes about 15 minutes.