• Ignition Timing Light: Design to re-timing your car's ignition to get the best performance that you can. Suitable for car, vehicle motorcycle, marine,all two-stroke and four-stroke gasoline engines, easily operate on 12V ignition systems
• Handle Pistol-type design:Ergonomically designed with comfortable press keys, great Press feeling and easy operation. And the high quality makes it be worn hardly.
• Sensor Clips: The sensor clip is red and black to distinguish positive and negative poles, easy to use and more secure. It's sliding clamp-on inductive pick-up, for easy and safe hookup.
• Advance Function: Capable of testing the ignition timing scale on the engine flywheel or belt pulley intuitively to adjust appropriately.Able to detect the automotive knock suppression control system and vacuum advance angle control system, change its advance angle with the speed change.
• Attention: The power supply is 12V with red connecting to positive and black to negative. The high voltage wire induction clamp is clamped on the high voltage line of cylinder with the arrow on the induction clamp pointing to the direction of the spark plug for normal working.

Connect Red clip to positive terminal of battery, black clip to negative terminal of battery, connect largest clip to #1 spark plug	Switch on Engine	Aim at Target Aim timing light at the crankshaft scale of the pulley and pull the trigger	Check Check timing

Will Work on Diesel Engines？ No Diesel vehicles do not have spark plugs or distributor, so this timing lights will not work on diesel engines

Will Work on 6-Volt System？ Yes On 6-volt electrical systems, use an auxiliary 12-volt battery to power timing light. Connect BLACK clip to negative (-) post and RED clip to positive (+) post on auxiliary 12- volt batter

In the actual course of testing, What to do if the Ignition Timing Light can't light up ?