Spark plug question

[Cbohlen]

I had to pull the plugs while changing the timing belt on my RB and I noticed that they are really bright white after a couple hundred miles. I'm not sure if the iridiums read differently then regular spark plugs, but they seem a little too clean (lean/hot) than they should be. Is this normal?

[future_R34]

Spark plug question

Weird..... It's almost "new" looking at the electrode. The rest of it looks ok tho, maybe a bit rich lol. Me personally would think that's fine

Here was a pic of mine for a comparison, text-book coffee colour.


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[Pldovr]

How's your cranking compression? That's very Rich. Could even be fuel wash.

[future_R34]

How's your cranking compression? That's very Rich. Could even be fuel wash.

Maybe a stuck injector? From what I've seen in the past from other engines(not rb's) if poor compression causes a black than normal plug, but never clean like his.

Can Anybody else help this guy out?lol


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