In 1967 he would battle Hailwood on his six - cylinder Honda all the way to the final round .
Teething problems with the new engine meant he would lose the crown to Hailwood .
In 1967 Hailwood would battle Hailwood on Hailwood 's six - cylinder Honda all the way to the final round .
Teething problems with the new engine meant he would lose the crown to Hailwood .