Black spark plugs

[anonymous-user]

Number 3 wasn't firing and I had a black and wet spark plug.

I've changed the soark plug and it's firing again on all 4.

The other 3 plugs were new. They are now black. Why?

Engine is on 45 carbs with a webcom aplha ECU.

Thx

[anonymous-user]

It doesn't have a choke but I'm thinking the fact I've been struggling to Start it (due to one dud plug) the whole thing might have been a bit fuelly and flooded might explain it.

I've ordered some new plugs so I'll have a fesh set to go on.

The old ones (that were in up until recently) looked healthy after prolonged use and the carbs haven't been adjusted at all recently.

[anonymous-user]

Definitely a plug has failed. I changed back to an old one that I had taken out and it's running nicely.

Question is, why are the other 3 black? I think it's probably because there was so much fuel going in trying to start it up.

[anonymous-user]

Thx for the replies gents.

I'm confident it's running well now. I'm in the process of putting it back together.

I'll report back if I have any more issues.

[anonymous-user]

..To complete this thread. It turned out to be the coil pack. It was on its way out but hadn't quite failed. Changed it and the car was happy as larry again.