4 stroke 49cc engine f/m kit on Ebay

[iron_monkey]

Also, you would have learned all manner of info about the HS engine if you had followed that link to here:

http://www.motoredbikes.com/showthread.php?t=21790ut

That's a simple valve alignment issue. I wouldn't avoid it just for that, since its easily fixable. Just that someone had to suffer to provide this knowledge.

For a "plug and play" kit, of course buy the american made kit.