How to go about planning a trip for a 250cc motorcycle?

I have daydreamed about taking off on a motorcycle trip and traveling America for years now. I have come to realize that I am still young at the age of 22 and thought I should make it happen this summer break. I have saved up money and will continue to do so until the summer.

I plan to make my way from Boise Idaho to Seattle then from there I will go down through Oregon and to Northern California where there are a couple of work exchange opportunities that I want to do which means that I will be helping out with labor (mostly on farms) in exchange for room and board which will save me some money… Or I could camp, but it sounds like a new experience to work for it.

I have read a few ride reports on sites like ADVRider where people ride cross country on 50cc scooters which makes me feel better about my situation. I plan to do this trip on a 1995 Honda CB250 Nighthawk that I have been riding for about 4 years now. Obviously, this isn't a great bike for freeways.

How would you go about planning a trip for a 250cc… Is there a way to find out the max speed limits of highways by looking them up on gps, maps, or other sources? The fastest I have gone on the CB250 is about 70-75 maybe at high RPM.

Thanks!

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