1981 Honda 200XR?

Question

My old honda is burning through spark plugs within a couple hours. Im thinking its because my fuel mixture is too rich. How do I fix that. If its another problem please let me know. If you can give me a website on how to do it myself.

Answer 1

Dirty air cleaner will cause it to run rich and foul the spark plug.
Low cylinder compression (worn piston & rings) will not have the strength to compress and burn the fuel/air mixture, fouling the spark plug.
Worn and leaking valve guide seals will cause the plug to foul.