MotorVac CarbonClean System II LE-1 - Manual (Page 18)

Overview
1998 MotorVac Technologies, xvii
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- 9 above have been completed.
2. Refer to the vehicle's service manual for the manufacturer's recommended PSI.
3. Adjust Timer knob for 30 minutes. (Run time may be adjusted depending on the condition of the
vehicle’s fuel system.)
4. Press and hold the Start/Run switch.
5.
Turn the Pressure Adjust regulator clockwise until the Fuel Pressure gauge reads 4 PSI, or the
equivalent of the manufacturer's recommended specifications.
6.
Release the Start/Run switch. Check all connections for leaks.
7. Start the vehicle to begin the fuel system cleaning process.
• When the cleaning process is halfway completed, 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 the
LE-1’s alarm will sound.
9.
Turn OFF the vehicle's engine.
10.
Turn the Pressure Adjust regulator counterclockwise on the unit to release any residual
pressure.
IMPORTANT
Wrap a shop towel around pressure fittings before
disconnection to protect against residual fuel
spray.
11. Disconnect the battery leads, hoses, and adaptors. Return the vehicle's fuel system to its normal
operating condition by re-connecting the vehicle's fuel lines.
12. Re-install the vehicle's gas cap.
13. Start the vehicle and verify that there are no leaks.