Your CL90 does not have a model year. The Sell Date is listed as 1967-1969.
Prior to September 1973, Honda used a “Sell Date”. 1974 was the first “Model Year” for Honda.
Your CL90 is definitely rare. There was also the CL90L Sell Date 1968-1970
5HP SCRAMBLER. “5HP VERSION OF CL90 FOR NEVADA LICENSING REQUIREMENTS”
My first new motorcycle was a CB450KO in 1967.
There is a group in OKC that has rides for small bikes only, nothing over 250cc. Looks like fun.