Raptor 80 won’t idle. I’ve been through the carb twice and it’s spotless and all orifices are clear. Starts fine and revs up well but is slow to idle back down. When it does drop RPMs it dies unless you tickle the throttle. I’ve made gaskets where the intake manifold o rings are to ensure a seal. Currently running it in shop without air filter assembly to rule out problems there. I originally thought the low speed jet was clogged but I’m sure now it’s clear.