That's one of my problems up here, with a sohc 750, I lived in the boonies and had a ton of gravel roads to mess with, the best thing I've found is to get rid of the stock style front tire, I have a more modern crotch rocket type, there's not much trouble at all on gravel,
and rides good on pavement , In know the accepted wisdom is to stick with the oem type tires, and this was swapped out because it was the only type I could get at the time, but I'll stick with the same type when it's time to replace. I used to realy HATE gravel and sandy roads, but since I've installed that tire there's no more planning routes to minimize the gravel, straightest route works great now.
Ken.