Note: 1 Stock Engine= No Modification made to Engine
Note: 2 Limited Engine= Little Modification limited to bolt on items with slight horsepower increase.
Note: 3 Modified Engine=Modification includes bolt-on items and internal changes increasing horsepower.
| Engine | Model | Year | Series | Note |
| Concord | ||||
| 1498 | ULTRA 250 X | 2007 & Up | KX-CD-16/21 | 1 |
