Riding for Team Honda , McGrath and his mechanic Skip Norfolk were the surprise champions in their first year in the 250 class .
This was McGrath 's first of seven championship trophies for AMA Supercross .
Riding for Team Honda , McGrath and his mechanic Skip Norfolk were the surprise champions in their first year in the 250 class , and this was his first of seven championship trophies for AMA Supercross .