"I miss riding bikes, but that's the only aspect of it," said Stoner.
"A lot of the reasons that I left are definitely deep enough in there that I'm not getting cold feet and wanting to get back on a bike.
"I'm definitely happy with the decision I've made, and to be honest I'm not interested in going back."
Stoner has been a vocal opponent of some of the technical changes made to MotoGP in recent times, particularly the increase in engine sizes from 800cc to 1000cc.
He also questioned the nature of the sport following the death of Marco Simoncelli at the Malaysian MotoGP in 2011.
Stoner said he was now able to enjoy riding motorcycles whenever the opportunity arose.
"Bikes are where my passion will always be. I love riding them," Stoner said.
"Now I actually get to enjoy riding them a lot more because before [it was] serious the whole time."
Stoner said he was still very much learning the intricacies of V8s, and would need more time in the car before setting lofty goals.
"I'm just trying to enjoy it. I'm not really worried about results or anything like that at the moment," he said.
- AAP