How many times have you been at the field and wished that you knew what the factory setting were for your carburetor. With the advent of cell phones and tablets, access to web-based information is common everywhere, including the flying field. The table below has the factory setting for many carburetors.
Send me your data if you want them added to the table.
on gasoline carburetors the high speed needle is typically closest to the carb inlet
| Carburetor | Low speed | high speed |
|---|---|---|
| DLE 20 | 1 1/2 turns open | 1 1/2-2 turns open |
| DLE 30 | 1 1/2 turns open | 1 1/2-2 turns open |
| DLE 35RA | 1.1 turns open | 1 1/2 turns open |
| DLE 55 | 1 1/4 turns open | 1 1/2 turns open |
| DLE 110 | 1 1/4 turns open | 1 1/2 turns open |
| Walbro (on DA-50) | 1-5/8’s turns open | 1-7/8’s turns open |
| Walbro (on DLE-20) | 1-1/8 turns open | 1-1/2 turns open |
| Walbro (Zenoah G450PU) | 1-1/2 +/- 1/4 turns open | 1-1/4 turns open |
| RCGF – (Walbro Clone) | 1-1/4 turns open | 1-3/4 turns open |
| Turnigy TR-26HP | 1-1/4 turns open | 1-3/4 turns open |
| Magnum XL91FS | Throttle open, screw out, then 4-1/4 turns closed | 2-1/2 turns open |
| Magnum XL70FS | Throttle open, screw out, then 4 turns closed | 2 turns open |
| Magnum XL61FS | Throttle open, screw in, then 2 turns open | 2 turns open |
| OS TYPE 20C (on 32SX-H) | throttle open, turn until step even with barrel | 1-1/2 turns open |
| OS TYPE 20m (on 37SZ-H) | screw flush, turn in 1 turn | 1-1/2 turns open |
| OS TYPE 20C (on 32SX-H) | throttle open, turn until step even with barrel | 1-1/2 turns open |
| OS TYPE 1A, 15, 2A, 3A (on FP) | air-bleed hole half open | 1-1/2 turns open |
| OS TYPE 4BK 4D 5B (on SF) | throttle open, turn until step even with barrel | none |
| OS 50SX, 40 · 46FX | throttle closed, screw in, then 1-1/2 turns out | 1-1/2 turns open |
| OS 61FX | throttle closed, screw in, then 1/2 turns out | 1-1/2 turns open |
| OS 91FX | throttle closed, screw in, then 2-1/2 turns out | 1-1/2 turns open |
| OS 70FS | throttle open, turn until step even with barrel | 1-1/2 turns open |
| OS 91FS | throttle open, turn until step even with barrel | 1-1/2 turns open |
| Carburetor | Low speed | high speed |
|---|---|---|
| DLE 20 | 1 1/2 turns open | 1 1/2-2 turns open |
| DLE 30 | 1 1/2 turns open | 1 1/2-2 turns open |
| DLE 35RA | 1.1 turns open | 1 1/2 turns open |
| DLE 55 | 1 1/4 turns open | 1 1/2 turns open |
| DLE 110 | 1 1/4 turns open | 1 1/2 turns open |
| Walbro (on DA-50) | 1-5/8’s turns open | 1-7/8’s turns open |
| Walbro (on DLE-20) | 1-1/8 turns open | 1-1/2 turns open |
| Walbro (Zenoah G450PU) | 1-1/2 +/- 1/4 turns open | 1-1/4 turns open |
| RCGF – (Walbro Clone) | 1-1/4 turns open | 1-3/4 turns open |
| Magnum XL91FS | Throttle open, screw out, then 4-1/4 turns closed | 2-1/2 turns open |
| Magnum XL70FS | Throttle open, screw out, then 4 turns closed | 2 turns open |
| Magnum XL61FS | Throttle open, screw in, then 2 turns open | 2 turns open |
| OS TYPE 20C (on 32SX-H) | throttle open, turn until step even with barrel | 1-1/2 turns open |
| OS TYPE 20m (on 37SZ-H) | screw flush, turn in 1 turn | 1-1/2 turns open |
| OS TYPE 20C (on 32SX-H) | throttle open, turn until step even with barrel | 1-1/2 turns open |
| OS TYPE 1A, 15, 2A, 3A (on FP) | air-bleed hole half open | 1-1/2 turns open |
| OS TYPE 4BK 4D 5B (on SF) | throttle open, turn until step even with barrel | none |
| OS 50SX, 40 · 46FX | throttle closed, screw in, then 1-1/2 turns out | 1-1/2 turns open |
| OS 61FX | throttle closed, screw in, then 1/2 turns out | 1-1/2 turns open |
| OS 91FX | throttle closed, screw in, then 2-1/2 turns out | 1-1/2 turns open |
| OS 70FS | throttle open, turn until step even with barrel | 1-1/2 turns open |
| OS 91FS | throttle open, turn until step even with barrel | 1-1/2 turns open |
| Turnigy TR-26HP | 1-1/4 turns open | 1-3/4 turns open |