Is your generator (MEP002A or MEP003A) sputtering? Is it coughing smoke in a rhythm? If it is, it could very well be time for new injectors that will improve the performance of your generator dramatically. We now stock this very difficult to find injector. It was made by Onan in the early days and was then made by Yanmar for Onan. You can purchase Onan 147-0136 Diesel Fuel Injectors here.