O-rings arrived and installed, bike runs on 2 cylinders now and idles sweet with no popping. After 10-12 minutes, quick twisting of throttle causes considerable cough/bang in right carburetor. Still not worth a crap. Bike also kills when placed into gear. Side stand switch disconnected or connected, up or down makes no difference. Contemplating parting the bike out....'cause at this point, it will just be one thing after another, seen it too many times before.