AMA Racing has announced that riders Martin Cardenas, Jake Holden, Morgan Murphy, Shaun Summers and Aaron Yates have been penalized following the season-ending AMA Superbike Championship event from Mazda Raceway Laguna Seca on Sept. 16, 2007.
In pre-race technical inspection, the motorcycles of Murphy and Summers were found to be using engines that were not homologated for the class. In post-race technical inspection, the motorcycles of Cardenas, Holden and Yates were found to have illegal modifications to the crankcase breather tube(s).
Murphy and Summers were disqualified from the event and received six month suspensions. Cardenas, Holden and Yates have been fined $2,000 and will forfeit 20 points. Cardenas, Holden and Yates will retain their finishing positions from the event. As noted on page 30, section 3.1 Homologation, a, of the 2007 AMA Superbike rulebook. Only homologated motorcycles may be used in Supersport and Superstock competition.
Also, as noted on page 31, section 3.5 Engines, b, Except as noted, all internal and external engine parts must remain stock with no modifications
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