I spotted Peter's CL77 in the parking lot just off Virgina St., in Reno. The Honda CL77 was called the 305 Scrambler. These bikes were built from 1965 to 1968. The 305's had a muffler that both pipes went into, everyone I knew took off the muffler.
These bikes, and the earlier 250, the CL72 (1962-1965), with their up swept exhausts, really started the dirt bike craze. I remember that a lot of high school girls had burn marks on their legs from those exhausts pipes.