motor problems

[rider01]

having problems with honda 300ex. i was out riding and it just stalled out tryed to resart and wouldn't then on the second attempt it back fired and blow the carb off it has a stage one hot cam instaled and every thing else is stock is there any one that can give any advise thank you

[kawiefan]

dirty carb?
clean filter?
got spark?
jetting right?

give us a little more info please

[rider01]

getting spark carb and filter are clean stock carb dont know what the jetting is. it felt like it ran out of gas then never started again. thanks for your help

[HyBrid00benji]

Were you on it hard when it cut off? Does it backfire every time you spin it over?

[rider01]

yes i was on it third gear 3/4 throtle but not every time i crank will it back fire crank crank stop then crank crank backfire