What type of spark plug and the gap size - Tecumseh Lawn Boy Push Mowers Insight Silver Powered Series - Sens - A - Speed Walk Behind Mower - 10685

36 thou 0.036" or 0.8-0.9mm

NGK SPARK PLUGS - MOTORCYCLE APPLICATIONS

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NGK SPARK PLUGS - MOTORCYCLE APPLICATIONS ... Plug. Gap cc. Model. Year. Regular. Premium. Plug. Gap ... 08-09. ---. IMR9E-9HES 0.036. 1000. CBR1000RR.
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Honda Motorcycles Spark Plug Size Guide - Biker Rated

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Honda Motorcycles Spark Plug Size Guide ... Honda Spark Plug Fitment Chart ... HONDA, CBR 1000 RR FIREBLADE SP (EURO 4), NGK IMR9E-9HES, 0.8-0.9 MM.
‎Honda Spark Plug Fitment Chart · ‎Reading your spark plug · ‎Rich

The spark plug gap will already be set when manufactured! You will need to give the engine type, size and year for anyone to give you the information.

Pull one of the spark plugs, get the name and number from spark plug. Go to your favorite auto store and get the same spark plug.
Even if you go to walmart, they will have a catalog there close to spark plugs, look up your year--make--model and engine size.
Different manufacturers may use different gaps? I did look up motorcraft spark plug for your vehicle, I believe the gap was .050.
I usually go with the cheapest spark plugs that are listed for the vehicle, just because of the cost. The cheapest may not be the best.

How far the diode is to metal arm.

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What is the correct spark plug gap?
The spark plug gap on all products is .025-inch.

What type of spark plug does the unit take?
The size of the plug varies from unit to unit. On trimmers, blowers and hedge trimmers is RCJ-8Y or RCJ-6Y. Follow the spark plug recommendation and replacement procedures in the operator's manual if you are doing the work yourself.

Plug Specifications

• Thread Size: 14mm
• Hex Size: 5/8" (16mm)
• Reach: 11.2mm (7/16")
• Seat Type: Tapered
• Gap: .036" (0.9mm)
• Heat Range: 9
• Resistor: Yes

Spark plug gap size for 02 toyota echo?
NGK BKR5EY Spark Plug Gap: .031 inches or .8mm

Gap Size: 1.016 mm Champion brand Part #: C339201Mfr #: 9201

not to bad you'll need long extension, front one are there in view, the back one's remove spark plug boot (long one) and with extension you can reach spark plug's.

Notice: This engine has aluminum cylinder heads. Do not remove the spark plugs from a hot engine, allow it to cool first. Removing the spark plugs from a hot engine may cause spark plug thread damage or cylinder head damage.
Gap the spark plug, using round wire type spark plug gap gage. 


Gap Adjust the spark plug gap to 1.14 mm (0.045 in).

DO NOT coat the spark plugs with anti seize compound. Over torquing could occur and damage to the cylinder head threads may result.

If your going to use Platnum plugs, DO NOT GAP them. Just check the gap and if there not the right gap, ask for new one's with the right gap.

The metal on the PLatnum plugs, are harder and my break apart in the cylinder .

Good luck and hope this helps