[vortex manco]

just purchased a used manco model 616 for the kids. stickers on the cage say fox, stickers on the plastic body panels say vortex. not sure what to refer to it as. 169cc subaru robin with a comet torque converter. that's our problem. kart jumps and skips bad. replaced clutch with new one provided by last owner and I want to remove and clean the converter but can't seem to remove the darn thing. any advice pics or videos on this process would be greatly appreciated. It appears to my very amature eye that the pieces that lock the converter into place may be worn and causing the jumping. Is it time to replace? if so where do i i.d. the model of converter and should i upgrade if possible? thank you. just noticed converter is marked comet 20 p5. are the pieces/teeth that lock the converter made of plastic? can they be replaced by the ones on the back side that show no wear? thanks.