Whether there are sparks at all can be found out with a simple high voltage test.
A thorough visual inspection can often reveal the cause of a malfunction.
Are all wire connections and plug contacts firmly seated in the coil (transformer) ignition, distributor or in the mounting block.
Is a single contact loose in the multi-pin plug?
Is there a resinous mass on the ignition coil or part of the ignition coil on the transformer. In this case, it is damaged.
Are there signs of damage on the distributor cap. First of all, pay attention to its inner side.
Are all parts of the ignition system clean and dry.
Wet dirt can cause voltage leaks.
In addition, check the high-voltage wires for tight fit and damage to the insulation.
Electronic ignition systems are very sensitive to sparks and leakage currents due to their high voltages.
The last step is to check the ignition.
Only now check the ignition coil / transformer and the Hall sensor.
Attention. Connect and disconnect control and measuring devices only when the ignition is off.
Is there high voltage?
Immediately at the beginning, you need to check whether the ignition system produces sparks at all.
Remove spark plug plug, unscrew spark plug.
Put the plug on the spark plug again and put it on the engine block like this. to make good ground contact. It is even better to connect the threaded part of the spark plug with an auxiliary wire to the engine.
Have an assistant turn the engine over with the starter.
If powerful sparks jump between the electrodes of the spark plug, then high voltage is present, but the ignition timing setting may be violated.
If there are no sparks, then you need to check the candles of other cylinders.
If there are no sparks in this case, then you need to check the ignition system completely.
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