Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hi there my name is don i will try to help you
it sounds like you have a bad ring or there is a gouge in the cylinder wall allowing the oil to bypass the rings
i would do a compression test to see what it is and also a cylinder leak down test
you can try a wet test as well this will tell you if it is a ring or stuck valve
hope this helps you if you have any questions please came back and ask me through this post