Hey there! I'm RetroBear most folks call me Retro! I'm a young guy who just put a 4 stroke kit together on my Schwinn Admiral bike and I've come looking for help! The clutch broke on my generic chinese 4 stroke bike engine kit and I have searched high and low for info on replacing or fixing it so here I am! They sell replacement springs on Amazon in packs of 30 so hope is not high hahaha. It was an absolute blast to ride for the first few miles before the clutch died though... Anyways thanks and I hope to learn more here on this forum!