I recently Changed my sparkplugs from the factory ones to those bosche duel connector ones, and when i removed the old factory ones, the tips were charcoal black. What's Wrong. Speedoptions.com had some article on their pro tips about analyzing your spark plugs and said it could be:

Faulty choke - over rich air/fuel mixture
Delayed ignition timing
Bad ignition leads
Plug heat range too cold

Please let me know if it's one of these problems or something else and some info sites or something on how to fixe em. I'm still new to engine concepts so don't ask me spec questions. It's an ex coupe i got used and is still factory. Thanx

 

If it's a '94 with the original factory plugs, that may explain why they're black. If all the other basic maintanance was neglected also, the ignition system isn't up to performing as it should. How many miles on the odometer?

Since it sounds like the car was neglected, I would suggest you check the air filter, cap, and rotor. Brake fluid and coolant flush wouldn't hurt either.

 

there's about 60,000 miles on it and i got it used from a honda dealership

 

and can somebody tell me what to do to keep the engine from running too rich?

 

The engine will operate at the correct air fuel ratio it was designed for all by itself if everything is working correctly. You claim the factory original plugs were black and you have 60,000 miles on the car. If they were the standard NGK plugs, they should have been changed out twice already. Make sure the basic maintanance items are taken care of first before you try to "keep the engine from running rich".