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When the breaker contact is fully open, the change of the self-alignment angle can be changed by changing the relative position of the cam and the contact by turning the adjustment screw. When adjusting, fix the camshaft to the required position angle, move the contact bottom plate to the contact just opened, and then fasten the bottom plate with screws. The adjustment of the ignition advance angle of the magneto. When installing the magneto, the screws that fix the magneto are not tightened first, and the magneto is pulled inward or outward. This is equivalent to moving the position of the breaker contact, and the permanent magnet rotor shaft does not move, so the ignition timing can be changed. . Note that because the engine crankshaft and the permanent magnet rotor shaft are fixedly connected, this adjustment method also changes the ignition angle of the magneto motor on the multi-cylinder engine. When the magneto motor is loaded, it is necessary to pay attention to the high-voltage line leading to the engine. Connect to the corresponding cylinder spark plug, otherwise it will not start. After dismantling the magneto, pay attention to the markings on the bottom plate of the breaker contact and the housing when assembling. On a multi-cylinder magneto, the markings on the gears of the automotive lube camshaft and the gears of the rotor shaft must be aligned. Otherwise, the ignition angle is incorrect, no spark is generated, or the spark is too weak. It is necessary to keep the magneto motor clean, and wipe off the contaminated oil, water and dust, etc. in time to easily cause leakage of the high voltage line. Regularly clean and polish the platinum to ensure good contact with the platinum contacts.
No high-voltage spark high-voltage coil or high-voltage wire is broken; contact gap is abnormal or contact is melted and dirty; capacitor breakdown and short circuit; in low-voltage circuit, there is grounding from the coil output end to the movable contact Where; the movable contact lever arm is broken; the breaker fixing bracket fixing screw is loose, causing the position angle to be incorrect; the high-voltage coil lead-out insulating sleeve is invalid; the rotor is demagnetized. Sparks weak high-voltage line leakage, high-voltage insulation is not good, there is a grounding; contact surface oxidation or oil pollution; capacitor leakage or desoldering; induction coil moisture; rotor magnetic weakening; magnetic position angle is not normal. The spring force of the interrupted arm spring is too weak; the power-off arm is too tight or too loose with the shaft; the rolling bearing is seriously worn; the bakelite cover is cracked; the breaker contact is loose. Inspection and repair of the main components of the magneto. If the thickness of the disconnector of the breaker is less than 0.5 mm, if the burning is not serious, it can be used after smoothing with platinum sand or oil stone, otherwise it must be replaced. When the spring force of the breaker spring is too weak, the spring should be replaced, or the spring piece can be corrected or the connection end of the spring can be installed inside to increase the preload. There is very little open or short circuit inside the induction coil induction coil. Generally, it is not repaired and replaced with new parts.