Carburetor
| Model 4243740 | Model 4243743 | |
| Float Level | 0.779 Inch (in) | 0.779 Inch (in) |
| Fast Idle Opening at 68°F | --- | --- |
| Choke Breaker Opening at 14°F | 0.067 Inch (in) | 0.067 Inch (in) |
| Unloader Opening at 32°F | 0.051 Inch (in) | 0.051 Inch (in) |
| Model 4243740 | Model 4243743 | |
| Float Level | 0.779 Inch (in) | 0.779 Inch (in) |
| Fast Idle Opening at 68°F | --- | --- |
| Choke Breaker Opening at 14°F | 0.067 Inch (in) | 0.067 Inch (in) |
| Unloader Opening at 32°F | 0.051 Inch (in) | 0.051 Inch (in) |