i went to start my 400ex and it wouldent start i tryed swiching the spark plug it was black and i tor apart the carb but it was fine and then i puled out the cap and the oil was up to the top of the dip stick i took the oil plug out and no oil came out i poked a wire in the hole and nothing came out so i took the oil filter out and just a little oil came out my dad thinks my oils to thick i run maxima 10w 40 semi sinthetic pleas help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !

 

i changed the spark plug the oil and the main jet it started rit up and it runs better than it use to