could anyone tell me why my spark plug keeps burning out on my mariner 2hp?

use COLDER PLUGS. any dealer will have them. YOU RISK HOLING PISTON!!!

MULEMAN
February 2009

"Burning Out" Do you mean it is white or tan and burned or melted? If so I would agree with the first poster to answer and would add lean mixture. If you mean fouled, black, wet . . . then It might be too much fuel, too much oil in fuel, too little ignition voltage too cold a heat range plug, or too close of a gap.

Joseppie
November 2008

ignition timing maybe retarded.....

r u using the right heat range plug.......try running a colder plug

murray
November 2008