October 19, 200916 yr went out on my 2007 gas gas 250 yesterday and when i revved the bike a little bit it made a slight hissing noise from the carb. someone told me that its the carb sucking air in through one of the needled on the carb, as the o-ring had gone. there was a slight bit of leakage from the neadle aswell. Does this sound about right? what is the best way to go about sorting the problem?
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