Two penalised for illegal fuel after Budds Creek.

AMA Pro Racing has announced that two riders - Michael Byrne and James Stewart - have been penalised 25 points apiece for using illegal fuel at round four of the AMA Motocross Championship at Budds Creek last month.

Fuel samples were collected from nine bikes at the event, and the samples from the motorcycles of riders Byrne and Stewart were found to be in non-compliance. Fuel from the motorcycles of Mike Brown, Ricky Carmichael, Josh Grant, Grant Langston, Akira Narita, Chad Reed and Ivan Tedesco passed analysis.

The fuel samples were sent to a certified testing lab which confirmed that the fuel used by Byrne and Stewart did not meet the requirements specified in the AMA Supercross/Motocross rulebook.