Let's be fair... not all of them were a disaster
but I can only speak for 2011 and up. I understand that the older models did have some major problems.
I had 3-310's that got the stuffing rode out of them and my TC250...an unreal bike, was used to win an Arena Cross championship.
We loaned the AMA an TE310 and Jack Penton rode the entire 2012 AMA Dual Sport series on it without any issues, other than trying to map the FI to match the FMF exhaust, that never panned out like it should.
There are still MANY 250/310 out there, being ridden and enjoyed (ask Jay Hall or Bill Farrell)....but on the same token, yes...we did see a fair amount of failures on a very wide scale on just plain ole stupid stuff. Some very small...and others catastrophic and yes... the largest number of failures were from bikes assembled during the same time the factory workers found out their jobs would be going to Austria. Of course...we found this out down the road.
The most common failures were... the starter drive on 310 (compression related), the wiring harness (connectors) gave issues, and the fuel pumps were pure junk (2011 models, ask me how I know
)
So we are left to question...which engine did GG actually get? There were big changes from the 2012 to the 2013 model but when I asked this question of the export manager...he didn't have a clue. However they (GG) did receive all the technical updates and documented failures from the factory, in order to improve future production units.
Just some food for thought....Who said they would move forward with the old HSQ engine? Considering the long term relationship with Yamaha, would it be possible to see the new YZ250 FX engine mounted in a GG chassis?
Time will tell...