I started my motorcycle this morning and left it running to warm up. But after a few seconds, I noticed some weird noises like only one piston was firing. When I hit the throttle, flames shot out the back of the exhaust pipes and puffs of smoke came out, then it died. I tried it again, but shot a video and posted it online. I've asked people I know, but everyone says just take it to a dealership. I figured I'd ask on here and see what you guys think?