After installing electronic ignitions on my two US Marine 305's I changed out the plugs with NGK which required a .031 gap.
I'd like to try a resistor type plug which a wider gap.
The engines start well, run well at all rpm's ,the timing is on , the carbs are on but the exhaust has a rich gas smell to it.
I was hoping a wider gap might clean that up a little. better.
Does either AC Delco or Champion require a .040 gap?
I'd like to try a resistor type plug which a wider gap.
The engines start well, run well at all rpm's ,the timing is on , the carbs are on but the exhaust has a rich gas smell to it.
I was hoping a wider gap might clean that up a little. better.
Does either AC Delco or Champion require a .040 gap?
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