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Marc Marquez has already lost one of his engines from his allocation of five for the season. The engine in the bike Marquez was forced to park against pit wall during qualifying at Austin can no longer be used, Marquez admitted to us.

The engine problem occurred during Marquez’s qualifying run at the Grand Prix of the Americas in Austin. As Marquez was about to start a hot lap, he saw a warning light come on on the dashboard of his Honda RC213V.

The world champion had been told by his HRC engineers that if he saw that light, he was to stop as quickly as possible, which he duly did. The problem forced him to sprint back to his pit box, leap on his spare bike, and race out of the pits for a last-gasp dash for pole.

It resulted in a spectacular lap, which gave him pole position, from which he went on to take a convincing win.

Once upon a time, Grand Prix racing rules were fairly simple: bikes had to have two wheels, weigh 130kg, have a maximum capacity of 500cc and a maximum of four cylinders. The switch to four strokes in 2002 added a lot of complexity to the rules, and things have been getting slowly worse since then.

MotoGP now has two different categories with three different rule sets covering a single class, depending on entry type and results in recent years.

With Suzuki and Aprilia entering the series in 2015, and another rule change on the horizon for 2016, it’s time to take a quick look at the rules for this season, and see what has changed since last year.

Two-stroke GP racing is expected to die next year, and the announcement of the Moto3 class is expected to occur during the GP Commission’s meeting at the Czech GP in a couple days. Scheduled to meet on Friday, the GP Commission has been hammering out the details on the 250cc single-cylinder four-stroke racing class that will replace 125GP in 2012, and will likely make an announcement after Sunday’s race.

Similar in concept to the Moto2 class, the most notable difference is the rumor that the Moto3 class will not be a spec-motor series, meaning any manufacturer can build a thumper and compete in the series. Considering the large number of manufacturers that already have experience racing 250cc singles, we can expect an array of bikes to be on the grid in 2012.

It’s hard to remember sometimes that Rizla Suzuki is a factory team in MotoGP. Afterall with Rizla Suzuki often trumped by the top satellite riders, there is nary a Rizla rider in the Top 10 for the Championship standings. With Laguna Seca marking the middle-point of the MotoGP season, things are looking even more bleak for the folks at Suzuki, as both Loris Capirossi and Alvaro Bautista have nearly used up their six motor allotment for the 2010 season. As such, Rizla Suzuki is on its way to getting special dispensation from Dorna, and will see its motor allotment raised from six motors to nine, likely starting this weekend.