New WR owner here hoping to get some advice. The bike - 06 WR450F with only 350 miles. Previous owner installed GYTR pipe, re-jetted, and all the popular performance mods. My problem - Regardless of how long the bike has been running (10 min to 2 hours) I must always apply the choke to get the bike to start. I am using the 'hot start' after the bike is warm but to no avail. I can kick until the cows come home, but unless I apply the choke the bike is not going to start. Side note - once the bike starts and the choke is turned off, the bike does not sit at idle reliably and will usually die unless I apply throttle and start riding it. Thanks in advance.