Carburetor: Specifications
| Model 1945 | Model 1945 | Model 6145 | Model 6145 | |
| Carb. Part No. | R-40159 | R-40160 | R-40161 | R-40162 |
| Float Level Dry Note: Flush with top of bowl gasket plus or minus 1/32 inch. | --- | --- | --- | --- |
| Choke Unloader | 0.25 Inch (in) | 0.25 Inch (in) | 0.25 Inch (in) | 0.25 Inch (in) |
| Vacuum Kick | 0.13 Inch (in) | 0.15 Inch (in) | 0.15 Inch (in) | 0.15 Inch (in) |
| Fast Idle Cam Position | 0.08 Inch (in) | 0.08 Inch (in) | 0.06 Inch (in) | 0.07 Inch (in) |
| Bowl Vent Valve | Two-way electric | Two-way electric | Two-way electric | Two-way electric |
| Pump Setting Note: Hole position No. 2. | 1.61 Inch (in) | 1.61 Inch (in) | 1.75 Inch (in) | 1.75 Inch (in) |