1. What is Spark Plug Gap?

The spark plug gap is the distance between the center and ground electrode at the tip of the spark plug. Proper gap is crucial for optimal engine performance, fuel efficiency, and emissions.

2. How Does This Calculator Work?

The calculator provides recommended spark plug gaps for common 2-stroke engine models:

Explanation: The calculator uses manufacturer-recommended gap settings for various 2-stroke engines, or allows you to enter a custom gap.

3. Importance of Correct Spark Plug Gap

Details: An incorrect gap can cause misfires, poor fuel economy, reduced power, and increased emissions. Too small a gap may result in weak spark, while too large a gap may prevent sparking.

4. Using the Calculator

Tips: Select your engine model from the dropdown. For engines not listed, choose "Custom" and enter the manufacturer-recommended gap.

5. Frequently Asked Questions (FAQ)

Q1: Why does spark plug gap matter?
A: The gap affects the spark's intensity and timing, which directly impacts combustion efficiency.

Q2: How often should I check my spark plug gap?
A: Check whenever replacing plugs or experiencing engine performance issues.

Q3: Can I use the same gap for all 2-stroke engines?
A: No, different engines have different requirements based on ignition system design.

Q4: What tools do I need to measure/adjust gap?
A: Use a wire gap gauge (not a coin-style gauge) for accurate measurement.

Q5: Does altitude affect spark plug gap?
A: Higher altitudes may require slightly smaller gaps due to thinner air.