YSTOOL Professional Fuel System Detector Smoke Machine Leak Tester Diagnostic Tool Kit is designed for automotive fuel system leak inspection. Simple and efficient. Smoke leakdown detector can quickly and easily locate leaks within a short time rather than judge possible causes from gauge readings like other common leakage detectors for vehicles. Package List 1x Economical smoke leak detector 1x Smoke output tube 1x Specific power cable 1x Universal adaptor 1x Specific tester oil (250ml in the bottle) 1x Valve core wrench 3x Taper stopples 1x Crankcase adapter connector 1x Capped cone adapter 1x Adapter substitute 1x Hook 1x Instruction Easy Usage 1. Place the machine in a stable position, tighten the valve of the airbag adaptor clockwise. Insert the pipeline to be tested into the front end, press the manual pump of the universal adaptor to inflate the airbag and fully seal pipe junctions for no air leak. Insert the outlet of smoke tube into the inlet of the airbag adapter to ensure no air leakage. Connect the detector to vehicle DC12V battery. 2. Press the working switch and the detector starts to work for leakage detection. Small vehicles need about 2 mins to make the pipes filled with smoke and large vehicles need longer time. Prepare a head lamp if necessary. 3. After the leak detection, please clean up and put away the used adapters and tools. Safety Tips 1. Please add 20~30ml maximum fresh tester oil into the machine at first use. 2. Power off and cool the equipment before refueling. Regularly clean and replace the internal oil. 3. Avoid smoke sensitive components during the test. 4. For EVAP system, real-time pressure should be monitored and flow control knob be closed in time. 5. If this unit works for more than 20 minutes, the machine will trigger the protection mechanism to cut off itself.