Just changed the oil in my 01 like norm... dropped oil then spun it without starting it all the way as usual, then removed oil filter an replaced with the new filter. Filled the bike with new oil checked the levels which are fine then went to turn it over an now it wont start.... I always put it up on a rear stand for easy access nothing is different about the oil change... trying to start it an all she does is cough but not turn over.. I hit it with starter fluid an it turned over but right back off it went.... any ideas... I lifted the tank to make sure nothing was pinched or loose....not a thing!!