I was 14, my last year at school (Monterey Tech, near Frankston), I was working part-time, I rode a Gemini Boss 80 that kept breaking down, my Dad matched me dollar for dollar for everything that I saved, got my first new bike in '74 ..... TM125L.
Roger & Gerrit were my hero's, had my first motocross race in '74 in Sub-Juniors, use to do ok until Andrew Bailey started coming out on a CR125M.