Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hello, my name is ***** ***** I am going to assist you with this.
For some reason, a little oil in the air filter is somewhat normal on these KY units. I have seen very few that didn't have some blow by.
But if you are getting excessive oil, the primary causes are:
Oil level too full
Always start with the easy stuff - check the oil and make sure it isn't overfull, check/adjust the valves - they should both be set to .002".
While you are checking the valves, also check the breather valve. It is not normally a problem on this new of a genset, but while you have the valve cover off is the time to check it.
If neither of those take care of it, the next step is to do a compression and leak down test to see if you have a worn engine.