As soon as the coil cools down, the trimmer starts again and works for a while until the magneto is again heated. But after heating due to internal malfunctions, it ceases to produce current. It should also be borne in mind that sometimes a cold magneto can produce a good spark. If the spark is weak, and its color is orange or yellow. Normally, the spark should be strong, white or have a bluish tint. Observe whether the spark appears and what color it has.Using a starter, simulate the engine starting several times.Tie the cap with the nail to the cylinder using a dielectric so that the gap between the electrode and the cylinder body is between 5.5 and 7 mm (but in no case touches the “mass”).The nail should be of such a diameter that it holds well in the cap. Insert a nail without a cap into the cap.You do not need to twist the candle to maintain compression. If you don’t have a tester, then you can use the following method, with great care so that the electrode does not touch the cylinder, otherwise the coil will burn out. When the circuit breaks, the device will show infinity, and when closed.
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Read more: How To Use Gasoline To Stihl Chainsaw Normally, the resistance indicators should be in the range from 4-6 kom and above (depending on the model). Further, one probe of the device is inserted into the cap of the candle, and the second is connected to the “mass”. To check the secondary winding, you will need to set the switch of the device to 20 com.Normally, the resistance should be between 0.4 and 2 ohms. Connect one electrode of the tester to the “mass” of the coil, and the second to the contact coming out of the magneto.In this way, the primary winding will be checked. On the tester, going into resistance measurement mode, you need to set 200 Ohms.To test the coil, you will need to use a tester, and perform the following steps. Often, due to a magneto malfunction, a spark disappears on the spark plug, and ignition of the fuel does not occur. Magneto is the main part in the engine ignition system and is a coil with primary and secondary windings located around the core. Video: Ignition Coil Adjustment On Stihl Trimmer Therefore, incorrect installation of the part is excluded.īasically, the ignition adjustment is to set the correct clearance between the magneto and the flywheel. In addition, the flywheel is fixed to the shaft with a dowel and nut. In this case, the engine will either not start, or it will significantly lose power and will not gain momentum well.īut such problems with early or late ignition on two-stroke ICEs are quite rare, since the flywheel with magnets is already installed in the correct position, which is perfectly synchronized with the movement of the piston. May also be late ignition on the trimmer: after the compression of the fuel, which did not ignite, the piston goes down, and at that moment a spark appears.