everytime you buy a use car you have to and after that you have to wait for 50000 milles or 5 years.
vladimir antoine
A standard spark plug should last about 50K. A platinum tip plug should last 100K.
when do you have to change a spark plug and how many miles when do you have to change a spark plug and how many miles
No recommended service interval, just "when they fail"
100k miles or 80 if your conservative..
How many miles should I have before I change my spark plugs
To change the spark plugs in a Chevy Celebrity: 1. Give the spark plug boot a twist to free it up from the spark plug, then pull on the boot to remove the spark plug wire from the spark plug. 2. Use a 5/8" spark plug socket with an extension and ratchet or breaker bar to loosen then remove the spark plug. 3. Set the gap on the new plug to .045" then screw it back into the spark plug hole in the head. Tighten the spark plug and replace the spark plug wire. I change the spark plugs one at a time to keep from getting the spark plug wires on the wrong spark plug.
In order to change the spark plug wires in a Toro lawn mower, the engine housing should be removed. The spark plug wire will then be disconnected which is a simple twisting movement under pressure. This is a very quick procedure.
Your spark plug manufacturer would recommend your replacement schedule.
every 30,000 miles
In your tool kit you should have a rench that will fit on the plug. You pull off the spark plug wire and take out the spark plug. Make sure the gap is set right for the new plug and put in in. Do not over tighten.
You have to take the gas tank off then you should be able to reach it\
You should change spark plug wires because with time they'll become frail, the rubber will get hard and crack, creating a place for the current to escape leading to misfires, loss of power and other annoying problems.