Turning a DRZ400E into a DRZ400S

[joasphoto]

I recently bought a DRZ400E to do a trip from London to India, crossing Turkey-Iran-Pakistan.

The bike was second hand of course, a 2001 model, only 2.5K miles on the clock, mint condition and with stunning extras as Excell rings, talon hubs, FMF full exhaust, gel seat, ASV levers, Ohlins shocks and fork springs! I never saw another like this. Lucky me I found it!

The problem is, the rear subframe is very weak, made for enduro not to fit a rack and luggage, so, I bought a DRZ400S subframe on ebay to fit on it. Haven't done yet, but the subframe already arrived.
I need the turning light too, I though about re-wiring the bike with the S model wires, but I think it will be too risky, so I will create the turning light system "manually" using some relays and the S version left switch.

Once its done, my E version will be more S!

But... the E carburator, which seems to be much more powerful than the S version. I think that is great to already have it. My question is, how can I adjust it to manage all kinds of petrol I will find along my journey? Any tips?

Thank you guys!

Joas