2014 Gas Gas EC300R

[n_green]

Hmm

So I started it up for the first time today, got it warm and rode it round the yard a few times then played with the air screw. With 40p, NECJ#3, 172m it seems lean off the bottom. I only played with the idle circuit but whilst it had a reasonable idle, if anything a bit low, I had to come in to 5/8 turn out on the air screw to get a decent response when cracking the throttle. Over 1.5 turns and it lean bogged when cracking the throttle, although it settled back down and didn't race on the idle so not the classical lean symptoms.
Closing the AS altogether it took a while to stall,
It also seems to run a bit better with the choke opened.
It was its first heat cycle so I didn't crack the throttle too much or play for long. But it appears that the settings seemingly working well for Simmo on his '13 are lean for my '14. We are both in the same location, same sea level etc.

As I understand it the '13 and '14 use the same cylinder, but the '14 uses different cases and vforce 4 reed valve not vforce 3. I wonder if this causes different jetting requirements?