The American had spent the Malaysian Grand Prix weekend observing Suzuki's MotoGP team in action, and should then have joined some of the world championship regulars during Monday's test.
However, heavy rain wrecked his hopes. Spies waited patiently in the pits, where he was pictured reading a crime thriller by James Patterson, but conditions only marginally improved in the afternoon and he was forced to call it quits.
Spies was rumoured to have a slim chance of riding as a wild-card in the season-ending Valencian Grand Prix on November 4, depending on the outcome of the test.
2006 MotoGP world champion Nicky Hayden, a former AMA Superbike champion, plus Suzuki regular Chris Vermeulen were the only riders seen to brave the rain.
