The Australian, who last competed not the RC213V at Valencia MotoGP in November 2012, was at the Twin Ring Motegi in Tochigi, Japan, with plans of re-familiarizing himself with the RC213V ahead of testing the 2014 prototype.But unfortunately, rain affected the first day, and Stoner, the 2007 (Ducati) and 2011 (Honda) MotoGP Champion, only got in six laps with the RC213V.Casey Stoner (Honda HRC Test Rider) says: “It was good to get back on the bike, if only for a few laps! We only managed to get one run in before the rain arrived which was a little disappointing.“It was really nice to get that first run, it’s been 9 months since I’ve been on a bike and it’s going to take me some time to get used to everything again! The bike and the track felt good and I hope that we can get some better testing in tomorrow with some dry track time and run some more laps.”This is the first test of four planned for Stoner at the Motegi circuit. Stoner will be back on the circuit Tuesday for further testing. Stoner’s input will help the further prepare the current Repsol Honda team of Marc Marquez and Dani Pedrosa.