killing spark plugs

[nodody]

I recently purchased a 95 polaris sportman 400. First thing was cleaning the carb and fuel tank, this got it running, but still having trouble getting it adjusted just right. The main problem now is spark plugs. I'm averaging a plug to a tank of gas.They don't appear to be burnt or flooded, they just quit firing and I can replace them while the motor is still hot and it runs great. I discovered this after a couple of miles of pushing. Any suggestions?

[Crazy400EX]

rich...fouling plugs
lean it out

[quadmad123]

hi if i was you mate i would check the earth[to the frame] good luck

[nodody]

tried leaning and checked ground and wire, killed 2 more plugs,,this is gettin aggrevating!

[bwamos]

Just gotta make sure.. you're not running 2-stroke premix are you?

Not saying you are.. but sometimes people just grab the lawnmower/weedeater fuel can and fill her up.