What is the difference between b7hs and b7hs 10?

What is the difference between b7hs and b7hs 10?

Re: Plug: b7hs vs b7hs10 The 10 is pre gapped for a specific application that is the only difference.

What is the difference between BKR5e and BKR6e?

Registered. the difference between a BKR6e and a BKR5e is that the 6 is a colder plug. On NGK the higher the number the colder the plug. A 5 would work to get you out of the woods.

What do the letters on NGK Spark plugs mean?

The heat range of a spark plug is the range in which the plug works well thermally. The heat rating of each NGK spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type.

What heat range spark plug should I use?

If the heat range is not optimal, then serious trouble can be the result. The optimal firing end temperature is approximately 500°C (932°F) to 800°C (1472°F). The two most common causes of spark plug problems are carbon fouling (< 450°C) and overheating (> 800°C).

When should you run a hotter spark plug?

Spark-plug heat ranges should stay the same as at sea level, unless racing above 3,000 feet, where one step hotter usually suffices. 10. Engine condition: Hotter plugs can crutch a worn engine suffering from worn or leaking piston rings or valve guides—for a while.

How do I know if my spark plugs are too hot?

Blisters on the insulator tip, melted electrodes, or white deposits are signs of a burned spark plug that is running too hot. Causes can include the engine overheating, incorrect spark plug heat range, a loose spark plug, incorrect ignition timing or too lean of an air/fuel mixture.

What happens if you run too hot of a spark plug?

If the tip of the spark plug is too hot it can cause pre-ignition leading to detonation/knocking and damage may occur. Heat from the combustion chamber escapes through the exhaust gases, the side walls of the cylinder and the spark plug itself.