Hey guys, Need some help with my 450X which has me scratching my head. When under 175 degrees my 450X runs great. Once it starts going above 175 the bike starts popping, backfires, feels like it's being starved of fuel then dies. The electric start just cranks and it will only fire back up with the kick starter. Idle rises then falls until it stalls. Tokyo Mods just cleaned the carb, installed all new fuel lines, made sure the overflow tubes weren't clogged, and installed a new plug. I am at a loss besides thinking the ignition coil or stator are beginning to fail. What do you think?