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Spark plug wrenches

Welcome to our collection of spark plug wrenches. Here you will find everything you need to know about these handy tools for maintaining your scooter or moped. Find out below which size spark plug wrench you need, how you can replace your spark plug yourself and more.
Spark plug wrench / various

What size spark plug wrench do I need?

Spark plug wrenches are available in different sizes to fit different spark plugs. The most common sizes are 16 mm and 21 mm. Check the specifications of your spark plug to determine what size spark plug wrench you need to remove and install it.

Standard sizes

Most scooter and moped spark plugs have a standard size of 16 mm. However, always check the specifications of your spark plug to ensure you are using the correct size spark plug wrench.

Special sizes

Some spark plugs, especially on larger engines, may have a different size, such as 21 mm. Make sure you choose the correct size spark plug wrench that fits your specific vehicle's spark plug.

How many mm is a spark plug wrench?

Spark plug wrenches are usually referred to by the size of spark plug they can hold. The most common sizes are 16 mm and 21 mm. These sizes refer to the diameter of the opening of the key that fits over the spark plug.

16mm spark plug wrench

A 16 mm spark plug wrench has an opening with a diameter of 16 mm and is suitable for standard scooter and moped spark plugs.

21 mm spark plug wrench

A 21mm spark plug wrench has a 21mm diameter opening and is suitable for larger size spark plugs, often used in larger engines.

Can you replace your spark plug yourself with a spark plug wrench?

Yes, you can easily replace your spark plug yourself with a spark plug wrench. Follow these steps to replace your spark plug:

Step 1: Locate the spark plug

Find the spark plug on the engine of your scooter or moped. This is usually located at the top of the cylinder head.

Step 2: Remove the spark plug

Use the spark plug wrench to carefully loosen the spark plug by turning it counterclockwise.

Step 3: Install the new spark plug

Insert the new spark plug into the spark plug hole and tighten it by hand. Then use the spark plug wrench to carefully tighten the spark plug.

How much does a spark plug wrench cost?

The cost of a spark plug wrench can vary depending on the brand, quality and size. Generally, you can buy a standard spark plug wrench for a few dollars, while more specialized or brand-specific wrenches can be more expensive. However, it is a small investment that pays for itself through the convenience and cost savings it offers when replacing your spark plug yourself.