How much should a spark plug be gapped?

Answer A spark plug gap is almost always less than a tenth of an inch. Every car has a different requirement for spark plug gaps and the slightest difference can affect how or if the car runs. Your owner'... Read More »

Top Q&A For: How much should a spark plug be gapped

Do New Spark Plugs Have to Be Gapped?

Today's internal combustion engines are continuously becoming more advanced and producing better horsepower-per-liter ratios. All of this advancement is occurring thanks to the use of a component t... Read More »

What Are the Symptoms of Incorrectly Gapped Spark Plugs?

Engine spark plugs are responsible for igniting an engine's air-fuel mixture, a process that creates engine power. Incorrectly gapped spark plugs can negatively impact engine performance. A list of... Read More »

How often should spark plug wires be changed?

A standard spark plug should be changed every 45,000 miles. However, some higher-quality spark plugs can last up to 100,000 miles. The frequency of spark plug service is based upon the manufacturer... Read More »

Which spark plug should be used in a Kohler 15 hp lawn mower engine?

The standard replacement spark plug for a Kohler 15 hp lawn mower engine is Champion model RC12YC or the equivalent in another brand. Engines that are Radio Frequency Interference, or RFI, complian... Read More »