I'd email the seller and tell them the cylinder head was damaged in shipping. If they don't hook you up with a new one I'd try some of that aluminum epoxy and stick it back on there. The engine will run fine without the fin and it shouldn't affect the cooling very much but its nice to have. Is the bubble wrap all it was packed with?
yaknow, guys...i really wish these sellers would quit with the hoopla: "the best kit" & "free HD roller-tensioner" or
"FREE frame adapter!"...just get down to the nuts-n-bolts of what components your particular kit includes, along
with an accurate pic
I just got a kit from the same guy and the spark plug cap is broken this
is my third kit from ebay and the first time I've gotten anything damaged, I wrote the guy through ebay then went to pay pal and got his reg e-mail address its email@example.com. Please let me know if he made it right for you I'm just starting to build these bikes and will be buying more kits but I want to deal with someone who stands behind what they sell. I just got my kit today so I'll wait to see what this guy does before i trash or praise him the motor looks alot nicer than the one I got from boygoesfast.