The 35 psi on the sidewall isn't the maximum pressure of the tire, it's the pressure at which the tire is rated for maximum load. For the DL650, Continental recommends 2.5 bar front, 2.8 rear (about 36/41 psi). This is according to the fitment guide on their website, and I run these pressures on the street. I don't adjust them for load, though I suppose you ought to air them down a bit.
On dirt I air down to 20/25. This helps the tires float on soft surfaces but I find it doesn't make a big difference on hard-packed dirt.
- Jet Jaguar
It's not an adventure unless you need a tent, a passport, and a leather glove for your shooting hand.