This may be achieved by lining up timing marks, using a timing disc or measuring the distance before tdc – refer to the manual for your particular engine Set the magneto on full advance.

The LED will be on when the points are open and will be off when they are closed – it’s as simple as that! How do I use it? Instructions are included with every unit - they are reproduced here to answer the question Remove the points cover from the magneto, clean and adjust the points gap Connect the two croc clips to each side of the points and switch on the timing light Rotate the engine to get the piston in the correct position for setting the ignition timing. Either way, the bulb will stay on whether the points are open or not! Try it and see! Yes, the battery and bulb method can be used on a coil ignition system provided the wire from the points to the HT coil is disconnected first – use this magneto static timing light instead and leave the wiring alone! Why can’t I use a piece of cigarette paper between the points? Well, you can – but you need an extra hand to tell when the paper has come loose and will never be as accurate as this magneto static timing light. This will be through the points if they are closed, or through the primary winding if they are open. Current in a circuit will always flow via the easiest path. Got some questions? Why can’t a simple battery and bulb be used to do the same job? In a magneto ignition circuit the points, condenser and primary winding of the magneto armature are all in parallel. It is powered by 3 AA batteries which are included with the initial purchase and are easily replaceable when necessary.

This magneto static timing light, This magneto static timing light comes ready to use and will work on all types of magneto and battery/coil ignition circuits too. This makes setting the ignition timing an easy, precise operation. This magneto static timing light uses a custom designed electronic circuit and an LED indicator to show exactly when the points are starting to open. Retarded ignition can result in overheating, sluggish performance, poor fuel consumption and starting may become more difficult. In extreme cases, pre-ignition may occur which will rapidly destroy the piston crown(s). Over-advanced ignition will make the engine difficult to start and will refuse to run evenly at low speeds. The very best performance from an engine can only be obtained if the ignition timing is correctly set. Item: 284186538923 Magneto Static Timing Light for spot on ignition - works with coil ignition too!.

Magneto timing light circuit