Re: hello from Tempe
Nothing to explain really...
The new 2010 EPA regulations passed a year or two ago took effect earlier this year.
In short, no Chinese motors without 2010 EPA specs are allowed in the country, and only Gurbee made the cut, and only gasbike.net can sell them.
Anything you buy elsewhere now is at least a year old.
Heck, even gasbike is dumping their old stuff for cheap too.
That doesn't mean a bad motor, everything I have build is 2009 Grubee's and no real problems, but you can bet you will have dried grease problems with your clutch. There is new topic here for that too ;-}