Hey guys.. first post here... ive had issues recently with my 08 wr450, darn thing just plain and simple wont start. So i threw a new plug in it first off and its getting great spark, still no luck. I yank the carburator and throw in a JD jet kit since im in there, clean the heak out of it and throw on a powernow, still nothing. I tried some ether and it will fire up and then die after fumes are burnt. So today I pulled it again, but first i pulled the airbox off and left gas tank intact to see if im getting any squirt into engine. Guess what... NOTHING. Shouldnt i be seeing a squirt of gas shooting into engine while blipping throttle?? Is this my Ap pump perhaps.. I did notice my Ap pump diaphragm was very rusted so i have ordered new to replace. Thanx guys for any feedback.. IM LOST. Also while having this whole thing apart I did airbox and the grey wire mod. Others were already done when I first bought the bike. Thanx again.