I got the same problem with my Honda Shadow, but the mechanic could fix it, and it went fine after that (Myttyon Pattaya (Honda) on Sukkumwit Road).my cbr 250 sometimes doesnt want to slip into first gear, when at a stop. My 2002 honda shadow wouldnt down shift at a stop if i was in a high gear. My 2009 Honda crf230 sometimes wont go into first at stop also. suspect just a quirk with Honda. Or i just got bad luck with first gears. Certianlly hasnt stop me from buying honda.