Join Date: Feb 2011
Location: Edmonds, Washington
Yosemite is going to be a zoo that time of year - LOTS of cars and people.
Hiway 1 north from LA is awesome up until Monterey, after that there's a lot of traffic. You may as well start heading east toward Yosemite there. From Yosemite, I assume you're taking 395 to Reno.
From Reno you can take 80 to Winnemucca, then head north on 95. Take 95 through Nevada, into Oregon, then Idaho. Stay on 95 until you get to Grangeville, then cut off on a short stretch (approx 20 mi.) of State Hiway 13 which will take you to Hiway 12. Hiway 12 is the road to Lolo Pass, one of the best motorcycle roads in the PNW and a great ride. Hiway 12 will take you to Lolo, which is about 10 miles directly south of Missoula.
95 is not exactly a freeway and will be pretty good in many places. In eastern Oregon and Idaho you should have pretty light traffic. That area is very sparsely populated and lightly travelled.
If it were me that's the way I would go.
2013 CVO Road Glide Custom - Atomic Orange