Apex1.0

I know the OEM spark plugs last a long time. My 2000 s2k has the original plugs. With 22k on the clock, should I change them?

freq

I would check them and re-torque them to the proper spec but not sure I'd spend the $$ just because of age.

Reckon

Take a look at them and then decide if they need replacing:
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Once all four of the old plugs are out, check them out - this is a great time to get an idea of how your engine is running.

Here's the general rundown on plugs:

White - lean and hot
Light brown - perfect
Dark brown - rich
Black - oil fouled or very rich (wet black is oil, dry black is carbon)

S2000s generally run white to light brown. If you see dark brown, I wouldn't worry, but you shouldn't see black unless you were having problems before you checked the plugs. Also, with our engines, cylinders 3 and 4 (the back two) are more likely to look fouled due to blow by through the PCV, fyi.

from: https://www.s2ki.com/s2000/topic/765...ug-change-diy/
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redlineracing

It's a 30 min job.If you take the time to pull & check,go ahead & replace.

I run NGK BKR7E($2 ea) ,Gap .040 on my 03 w/99k miles.Plugs are light tan every time.

\rlr
carolina

Topplayer

why not its cheap?

if not I would at least take them out take a picture for future reference and tq them down to spec!

Gotpepsi

I wouldn't consider s2000 spark plugs to be cheap...? Mine were like 10-13 bucks aa plug I think. Do spark plugs have an "expiration" date?

starchland

Replace them if they are the old style

Billman250

Definitely do them without question. Not so much for condition, but for proper torque (you are in recall)

Set the to 24 ft-lbs.

SpitfireS

How does the OP know they are the originals?
Is the OP the first and only owner?

S2KERRP2

Just outta curiousity how does 24ft pounds feel on a normal sized socket wrench? (i know ill buy a torque wrench) but i already changed them and im wondering if in f*cked. runs like a dream for about 7k miles since the change