Yamaha’s Jason DiSalvo was the fastest rider in Friday morning AMA Supersport practice at California Speedway with a time of 1:28.013 on his YZF-R6. The practice was stopped three times. The first stoppage was due to oil put down by the Yamaha of J.C. Gibbs. The oil drain plug of Gibbs’ YZF-R6 appeared to have come loose, according to AMA Pro Racing Superbike Series Manager Ron Barrick. The second stoppage was caused by Jeremiah Johnson’s crash in the turn one chicane. Johnson was transported to Loma Linda University Medical Center with shoulder pain. The final stoppage was caused by Damon Buckmaster, who crashed his factory Yamaha YZF-R6 at the exit of the turn one chicane. Buckmaster was not injured in the lowside crash, which may have resulted from the Australian losing traction on a helmet faceshield tear-off lying on the track. Provisional Friday Morning AMA Supersport Practice Times: 1. Jason DiSalvo, Yamaha, 1:28.013 2. Damon Buckimaster, Yamaha, 1:28.355 3. Tommy Hayden, Kawasaki, 1:28.519 4. Roger Lee Hayden, Kawasaki, 1:28.905 5. Jamie Hacking, Yamaha, 1:29.014 6. Ben Spies, Suzuki, 1:29.374 7. Ben Attard, Kawasaki, 1:29.419 8. Aaron Gobert, Yamaha, 1:29.582 9. Robert Jensen, Yamaha, 1:29.916 10. Chris Peris, Yamaha, 1:30.503 11. Danny Eslick, Suzuki, 1:30.629 12. Geoff May, Suzuki, 1:30.629 13. Nicky Moore, Yamaha, 1:31.011 14. Blake Young, Suzuki, 1:31.242 15. Matt Furtek, Kawasaki, 1:31.837 16. Chris Siglin, Suzuki, 1:32.016 17. Barrett Long, Yamaha, 1:32.502 18. Jim Wood, Kawasaki, 1:32.548 19. Nathan Hester, Yamaha, 1:32.911 20. Jeremiah Johnson, Suzuki, 1:33.231
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