06 problem

[300ex manguy]

my o6 has a problem whenever u give it full throttle it gives a loud hissing noise please answer asap

[popo]

Maybe it's the airbox talking. :confused:

[300ex manguy]

i dont kno it was its first ride and it just kept getting worse

[speednut3]

Take it to the dealer you bought it from.

[rpyfz450]

The FCR carburetors will whistle at partial throttle openings. You can notice this with the airbox lid removed. I've heard it on a few machines including an 04TRX which had an FCR installed.