Hello and a BIG thanks to all who post here. I finished my MTB ride a couple of weeks ago and could not have done it without the wonderful ideas and resources that can be found here. I purchased my engine from Boygofast on ebay and it took several days to install. I had a stuck clutch, could not free pedal. Without the excellent post on how to adjust clutch with the flowernut I think it would still be stuck. After I was able to free pedal, popped the clutch and the engine fired right up. I'm having a blast and thinking of building another so the wife can ride with me.