Specifications Power Input Bulb Lead Length Timing Advance 12 VDC AGA0314TSC Xenon 4 FT. 0° to 60° in 2° Increments Important Safety Information 1. Work area safety a. Keep work area clean and well lit. Cluttered or dark areas invite accidents. b. Keep children and bystanders away while operating a diagnostic tool. Distractions can cause you to lose control. 2. Electrical safety a. Do not expose diagnostic tools to rain or wet conditions.
4. Diagnostic tool use and care a. Do not force the diagnostic tool. Use the correct diagnostic tool for the application. The correct diagnostic tool will do the job better and safer at the rate for which it was designed. b. Do not use the diagnostic tool if the trigger does not turn it on and off. Any diagnostic tool that cannot be controlled with the trigger is dangerous and must be repaired. c.
Operation Tips Timing Light Basics Automobile engines work by mixing air, fuel and a spark to ignite the fuel/air mixture, creating an explosion, that powers the vehicle. Maximum power from the explosion must be delivered to the engine at a precise instant. Attaining that precise instant is called “Timing”. Timing is essential for fuel economy and power. Automobile engine manufacturers determine the exact timing necessary for every engine they build.
Operating Instructions Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this document including all text under subheadings therein before set up or use of this product. Note: These general instructions will not apply to all engine designs and/ or vehicles. Consult your engine manufacturer’s service instructions which supersede these instructions. Timing Light Hook Up 1. Locate the engine’s timing mark by referring to the vehicle’s engine manual or contacting the manufacturer.
Timing Adjustment Testing Centrifugal Advance 1. With the Engine stopped, loosen the bolt that locks down the distributor, but do not fully remove it. It should be loose enough so that you can rotate the distributor back and forth. Do not over-loosen the bolt or allow the distributor to move on its own. 1.
Testing Vacuum Advance 1. Speed the engine up slowly to the manufacturer’s specified speed for this test (often 2000 RPM) and leave the vacuum line detached from the distributor. 2. Aim the Timing Light at the timing marks and turn the timing advance knob on the back of the timing light up slowly until the timing mark moves to TDC or 0. 2. Connect the Timing Light to the spark plug wire directly opposite (180º) from the number 1 cylinder on the distributor cap. See Figure 4. 4 Cylinder 3.
Small Engine Timing Rotary Engine Timing 1. The Timing Light can be used to test the timing on any combustion engine that utilizes an impulse or magneto ignition, such as motorcycles, lawn mowers, or outboard motors. If the product does not have a 12 V battery then use an external battery. 1. Connect the red and black power leads to the battery. Connect the Spark Plug Clamp to the wire for the leading spark plug on the front rotor housing. 2.
Maintenance and Servicing Procedures not specifically explained in this manual must be performed only by a qualified technician. 3. To check the Lamp: a. Remove Rubber Sleeve (3) from nozzle of the Timing Light. Bulb Cover (4) TO PREVENT SERIOUS INJURY FROM SHOCK OR FIRE: Disconnect from the vehicle battery before performing any inspection, maintenance, or cleaning procedures. TO PREVENT SERIOUS INJURY FROM TOOL FAILURE: Do not use damaged equipment.
Parts List Part Description Q’ty 1 Left Housing 1 2 Right Housing 1 3 Rubber Sleeve 1 4 Bulb Cover 1 5 Lens 1 6 Timing Advance Knob 1 7 Nut 1 8 Rear Cover 1 9 Dial Scale 1 10 Tension Meter 1 11 Left Tag 1 12 Right Tag 1 13 Trigger 1 14 Internal Switch 1 15 Board 1 16 Clamp Cable 1 17 Cable Connector 1 18 Screw (M3x10) 5 19 Screw (M3x6) 1 PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
18 16 6 7 8 9 10 11 17 14 13 1 19 15 5 3 12 2 4 Assembly Diagram Item 40963 For technical questions, please call 1-800-444-3353.
Limited 90 Day Warranty Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase.
