Depends on weather your referring to a modern vehicle with a fuel injection 327, or a classic car. Depends on if points or electronic ignition . An example being a 68 Chevy 327 with points type distributor I set the gap at .035 now same engine with electronic ignition HEI distributor Icap a bit larger a max of .045
its gaped at .25
you will need to get a spark plug tool and check them before you install them in your car, if you buy them from a parts house sometimes they come pre gaped for your car
The spark plug should be gaped at .030"(76mm)
0.060 inch {1.52mm}
You will need to gap the spark plug according to manufactures recommendation or your application.
.035
.035"
i thought b9es was the plug for that bike. they should be close to pre gaped for you
answer
Some spark plugs come pre- gaped depending on the vehicle and type of spark plug. But even pre-gaped plugs should be checked with a feeler gauge to be sure it is correct If the plugs you are using are not pre-gaped a feeler gauge must be utilized in order to get an accurate gap reading. Your local auto parts store can help you with what the gap should be for your vehicle.
yes
You should always check the gap to make sure a plug hasn't been dropped on the end and changed the gap.