REWARD$$$$$ whoever tells me whatís wrong.
2012 Yfz 450r, Yoshi full, air filter, MSD Blaster,....was running fine one day, next day unloaded of trailer, started and idled barely, bog when trying to throttle, took to shop to have tuned , next thing I know, I have replaced injector, entire fuel pump assembly, put on New cdi from 19 450r, with new MSD, Then replaced lean sensor for kms eliminator, new TPS, checked Crank position sensor, checked all other sensors, pulled entire wiring harness to look for bad wiring, RE shimmed valves, checked intake boot for leaks, I CANT BELIEVE IT HAS been almost 2 months with this POS, and NO codes, unless I unplug something like tps or air intake pressure sensor, the physical timing is perfect, motor has hard time starting , but once started, it will no way shape or form try to idle, it Pops like it is lean, but spark plug is BLACK, COIL, ignition system test out, but timing seems off, THE ONLY THING LEFT IS REPLACE OR CHECK ISC Valve , or,,,,,,OR ..... BURN THIS MFER TO THE GROUND!!!!, PLEASE HELP BEFORE THIS THING MAKES ME HATE Yamahas forever!!!