Quote Originally Posted by andre555
Originally Posted by Deom2i
seriously guys im confused!!
Whats going on here..lol.
Is the Technology (EFI) on the bike no that good?
Sorry, got a bit carried away...

Chinese EFI is not proven

Galaxy tried first on their 233cc engine and failed (search the forum for an Andy guy, he got burned badly).
Jialing (JH600) had enourmous problems with their EFI - that got solved finally, but reluctantly. Not sure how owners in other countries ever got theirs fixed, if at all.

No expierences on the 250 watercoled engine (Yingang/Shineray) yet - the original Honda NX250/AX1 was carbed (afaik), so nothing to carbon copy from.

Only proven EFI bikes in China are Joint Venture bikes, foreign branded, eg. YBR250.

EFI relies on software - there is not much good Chinese software out there, especially not from local companies. Maybe they should ask the their Billion neighbour nation to the west...
Andre555 is exactly right. No one is saying that the EFI on the Yinggang is bad. More it is just that the probability that the EFI is rubbish and that the wise might want to do their research. Big companies like Honda spend a great deal of money making sure that their EFI is perfect. Different humidity, atmospheric pressure, user modifications etc etc all have to be taken into account, yet companies like Ducati and BMW still have glitches and occasional flat spots.

Having said all that, the CFMoto 600 must have EFI and is a four cylinder bike, and Chinese, yet I have ridden it and noticed no fueling issues, therefore it must be possible for a Chinese company to do these days, but most likely by copying or buying in outside technology.