i oil in my rediatot so i put new valve seals in it stoped the oil,put it back together and had no spark,i saw on youtube if you
take the black wire off the coil it desables the kill switches,i got spark back,it started right up ran really good,ran for like 1 minut
and shut off,i left it for a few hours started it and it smoked like hell,do you think the head has a crack in it? didnt smoke before all this
happened,1999 polaris sportsman 500,help someone!!!!!!!!!!!!!!!!!!!