1974 RX-2 & RX-3 Semi-Automatic Choke
- If outside air temperature is below 86°F (°C), go to step 3). If outside air temperature is above 86°F (°C), go to next step.
- Remove air cleaner and pull choke knob out fully. Measure ambient temperature surrounding choke. Check choke valve clearance between choke plate and air horn wall. To adjust choke valve clearance, turn choke set screw.
- See CHOKE ADJUSTMENT BELOW 86°F (°C) table to determine specific number of notches (off center) where movable plate should be located. Adjust choke by loosening set screw and moving choke plate number of required notches.
CHOKE ADJUSTMENT ABOVE 86°F (°C)
| Temperature °F (°C) | Clearance In. (mm) |
|---|---|
| 86(30) | 007 (.22) |
| 88(31) | 014 (.37) |
| 90(32) | 019 (.50) |
| 92(33) | 028 (.65) |
| 94(34) | 035 (.80) |
CHOKE ADJUSTMENT BELOW 86°F (°C)
| Temperature °F (°C) | Notches Off Center |
|---|---|
| 86(30) | 0 |
| 77(25) | 1 |
| 68(20) | 2 |
| 59(15) | 3 |
| 50(10) | 4 |
| 41 (5) | 5 |
| 32(0) | 6 |