My new to me 2008 650 is whistling at everyone as I drive down the road. Strange my 2007 never did this. Was wondering if the pressure valve on the tank is cleanable? Was whistling for a couple of seconds every 4-5 minutes. This afternoon it whistled for probably 10 seconds straight. When I opened the fuel cap, there was very little pressure so I'm thinking it's not holding pressure like it should.
So, is there an easy approach to the relief valve?
So, is there an easy approach to the relief valve?