H. Test Feedback Carburetor

1. Insert an exhaust gas analyzer probe into the tailpipe.

2. Run the engine at 2500 RPM in neutral for 30 seconds and then record the tailpipe CO reading at 2500 RPM.

3. If the CO reading is greater than 1.2%, re-check the installation of the jet mixture solenoid. Loosen the jet mixture solenoid and inspect it for mis-alignment, cross threading or over torque. Install it correctly by following the procedure covered in steps A-8 to A-11.

4. Run the engine at 2500 RPM in neutral for 30 seconds and then record the tailpipe CO reading at 2500 RPM.

5. If the CO reading is 1.2% or less move to step 6. If the CO reading is still greater than 1.2% then an Idle Speed & Mixture adjustment must be performed. Skip steps 6, 7 and 8 and proceed to Section 1.

6. Turn off the engine, disconnect the tachometer and remove the analyzer probe from the tailpipe.

7. Install the concealment plug into the hole to seal access to the idle mixture adjustment screw.

8. Reinstall the air cleaner assembly.

9. Move to Section K.