quacker998 - bike is a Norton rotary, rider is Paul Lewis (Australian rider). (Thanks to RAZR51 for suggesting that the name on the leathers is, indeed, Lewis) I remember Paul Lewis rode a Norton rotary.
OK give it a shot.
A Maico open class motocrosser, not sure the model, a 490 perhaps.
A Honda CR110 early 1960's GP race bike, 50 cc.
A Yoshimura modified, or limited production, version of the Suzuki Katana.