I’ve got a 01 banshee with an rz 350 motor. When the choke is out it fires up great on both cylinders for about 30 seconds and then the left cylinder (looking from the back) starts cutting out. Eventually it’s just firing here and their when it wants to but the right cylinder runs amazing. As soon as you turn the choke off, the right cylinder dies and the left one works a little bit. It just bogs down and shuts off unless you rev it really high but then it wants stay reved (no the throttle cables not stuck). Any ideas?