Stoner farewells the island as king

CASEY Stoner has said the perfect goodbye to Phillip Island, winning his sixth-straight Australian MotoGP in front of 50,000-plus fans.

Casey Stoner

CASEY Stoner has said the perfect goodbye to Phillip Island, winning his sixth-straight Australian MotoGP in front of 50,000-plus fans.

It was the perfect exit for the retiring two-time world champion, who courageously fought his way back from an ankle injury to compete.

Spain's Jorge Lorenzo finished second to secure the 2012 world crown.

"It's fantastic, and I couldn't have asked for a better way to end my career in Australia," a jubilant Stoner said.

"But at the same time, I'm not finishing here. I'm going on to Valencia to see if I can get another good result.

"I came here to finish this season, not just finish my home Grand Prix."

Stoner also talked down any thoughts he was considering a comeback down the track despite five-time world champion Mick Doohan hinting the 27-year-old might return.

"I've got no thoughts whatsoever at this time of ever even thinking of coming back," Stoner said.

"I'm not changing my mind every couple of minutes."

Stoner's last race will be at Valencia in two weeks.

Yamaha's Lorenzo secured the world title, ending the day with an unbeatable 43 point buffer over Dani Pedrosa with one race remaining.

Pedrosa, the only man who could beat Lorenzo for the championship, crashed out on lap two of the race while leading.

Stoner, who had been quickest all weekend, had got off to a tardy start, falling to third, but retook the lead after Pedrosa crashed and was never headed to win the race by more than nine seconds.

Doohan said Stoner would be remembered as one of the best riders in world championship history, and anointed the young Australian as "King of the Island".

Stoner, 27 showed no signs of any problems with the inkle injury that cut short his season, with the result marking his first MotoGP win since returning from the enforced injury lay-off.

"Casey is without doubt in my book in the top four guys there has ever been in our sport," Doohan said.

ADDITIONAL REPORTING: AAP