Carburetor Cleaning Procedure
Follow the steps below to circulate the fuel/detergent mixture through the vehicle's carburetor.
1.
Verify
that
Carburetor Setup
Steps 1-18
above have been completed.
2.
Refer to the vehicle's service manual for the manufacturer's recommended PSI.
•
At this point, refer to appropriate Intake System Cleaning Procedure section for proper intake
cleaning, and Vacuum gauge connections in the vehicle diagnostics chapter.
3.
Press and hold the
Start
button.
4.
Turn
the
Pressure Adjust
regulator clockwise until the
Fuel Pressure
gauge reads
4
PSI,
or the equivalent of the manufacturer's recommended specifications. It may be
necessary to increase the pressure to the level previously noted in
Step 10
of the
Carburetor Setup Procedure
.
5.
Release
the
Start
button.
6.
Press the
button to increase the time, or the
▬
button to decrease the time until the
Time
LED displays 30 minutes. (Run time may be adjusted depending on the
condition of the vehicle’s fuel system.)
7.
Start the vehicle
to begin the fuel system cleaning process.
•
When the cleaning process is halfway completed (check
Time
LED display), step on the vehicle’s
accelerator quickly three or four times.
Then,
maintain RPM at 1500 - 2000 for 30 seconds.
8.
When the run time expires, the cleaning is complete. The unit
will automatically shut
off and purge the pressure lines for five seconds. The
Cycle Complete
LED on the
control panel will illuminate, and the unit’s alarm will sound.
9.
Turn OFF the vehicle's ignition.
10.
Turn the
Pressure Adjust
regulator counterclockwise on the unit
to open it. Press
and hold the
Fill/Purge
button for four seconds to relieve pressure from the output
(
red
) hose. Release the
Fill/Purge
button.
11.
Loosen the vehicle's gas cap to relieve fuel tank pressure, and then re-install cap.
