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Most ignition systems will not exceed 1.0 amps of current draw

Current is measured in amps.

Current used for an ignition system is not relevant to engine size

Current draw on an ignition system depends on a number of things

1. spark plug & ignition leads condition

2. fuel mixture or ratio of fuel to air, 14.7 to 1 is the ideal mix

3. engine temp

4. engine compression

these are the most common variables.

Posted by Danny from Bee Mech Mobile Mechanics

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Q: How much current does an 18hp gas engine use for ignition?
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