I don't think it's that bad, it's really just a waiting game, double jump your tjolts and aim for his head, putting them right onto the ground gives him more reason to jump around. approach carefully with aerials and mix up your game for when he lands (grabs pivot grabs dsmash, tilts, shading) keep track of his fart timer. If you have the lead just make him approach. If he's coming up on his bike from below just wait him out. If he trys to bait you with an aerial from that position just be safe and jump down and footstool. If he's got a good amount of space make a thunderwall and wait for his approach back to the stage. his uair will kill you EARLY, trying to challenge it isn't even worth it, just go to the closest ledge if he's trying to challenge you while you're above. this matchup is campy as all hell but we can win it, he has an advantage but it is far from unwinnable. mix it up.
oh and learn the timing of bite. if you don't feel safe approaching at its end just throw a jolt or space an fsmash.