Join Date: Feb 2016
Location: San Antonio, TX USA
Gas Tank Whistle
This is my first post to the forum so bare with me.
I bought my first motorcycle ('09 250r) two weeks ago and I love it. Lots of fun, great gas mileage, looks awesome. I'm only having one issue. After riding the bike for a few miles I get a very loud whistling coming from the gas cap. There's a build up of pressure in the tank to the point of when I open the cap after riding, it sounds like opening a bottle of coke. As far as I know the fuel system is stock and the gas cap is also stock. Anyone have any idea whats going on? Thanks in advance for the help.