Uploaded September 2013 | Updated September 2026, 15 hours ago
Testing out a "spud in" type propane conversion on a Generac 4000 watt generator going through the side of the air filter box versus drilling out and "destroying" the gasoline carburetor.
I know conversions exist using a "doughnut" adapter between the air cleaner and the carburetor intake but while not an issue with this unit; on another generator I'm planning to convert, the adapter will make the air box hit the frame.
Got it working quickly but I'm still dialing in the fuel mixture and the governor on this particular generator seems to run a little fast at no load.
Testing out a "spud in" type propane conversion on a Generac 4000 watt generator going through the side of the air filter box versus drilling out and "destroying" the gasoline carburetor.
I know conversions exist using a "doughnut" adapter between the air cleaner and the carburetor intake but while not an issue with this unit; on another generator I'm planning to convert, the adapter will make the air box hit the frame.
Got it working quickly but I'm still dialing in the fuel mixture and the governor on this particular generator seems to run a little fast at no load.






![Single Point Urban Partial Cloverleaf Interchange
210 freeway at Base Line Rd in Upland. A rather unusual type of interchange; probably the only one of its kind.
[ http://www.kurumi.com/roads/interchanges/oddities.html ] Single Point Urban Partial Cloverleaf Interchange](https://i.ytimg.com/vi/CkH__bK7oHs/mqdefault.jpg)



