1. Read; understand; and follow "Safety Precautions" before using Fuel Injector Cleaner
2. Run the vehicle until the engine reaches normal operating tempreature;Shut the engine OFF.
3. Turn regulator on top of Fuel Injecter Cleaner to full OPEN position(counterclockwise). Leave the fitting on the end of regulator open-do NOT connect shop air.
4. Close the shut-off valve at the bottom of the Fuel Injector Cleaner. Note:Valve is OFF if it's turned all the way clockwise.
5. Remove top and regulator assembly from top of Fuel Injector Cleaner. Fill the container with one bottle of D-Karbonizer. Install top and regulator assembly again.
Connect the canister hose to a decarbonizing adapter.
6. Locate a manifold vacuum port (NOT ported vacuum) near the throttle body or carburetor.(This will distribute the decarbonizing vacuum port.
7. Start the engine.Manually increase throttle to 1;500 RPM while slowlyopening the shut-off valve.(the engine will run rough and RPM will decrease.Do Not manually increase RPM)
8. WHEN THE CONTAINER IS EMPTY; TURN THE ENGINE off.
9. Remove the adapter fitting from the engine.Connect the vacuum hose.
10. Let the vehicle sit for at leaset 30minutes to allow the solution to work on soft carbon deposits.
11. Test drive the vehicle for at least 15miles to flush loosened carbon deposits out of the system...