Re: engine runs irratic
Yes that is an issue. If the charging voltage goes to 18 volts the ignitor will overheat and malfunction. If this is the case then you should address the issue before you damage and expensive part. Place a voltmeter across the battery and go for a ride. Does the voltage stay at substantially 14 to 15 volts or does it hit 18 volts?
The most common problem is corroded ground wires so if you have an issue I would remove them and clean the lugs and studs, this free fix may be all you need.
Dave
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