2009 BMW F650GS Fuel system Problems

“Smelling gas behind me when I ride. I have a Bmw F650GS with under seat tank - I noticed both ride and left side of the sides of the tank are cracking. Tank seems to be plastic and there is a u shaped cut that runs down both sides. There seems to be a split or crack that is over seven inches on both sides. I am hoping there is nothing dangerous about these cracks?”

“My motorcycle was put into the shop before a trip and we were told that there were cracks on the outside wall of the fuel tank in the seam areas. Victory Bmw told us that it happens to a lot of bikes and they would try to put it in under warranty and we were later told that the company would not cover it. There are a lot of complaints on the web under the Bmw 600 - 800 forums. Any problem with fuel tanks is a serious dangerous situation. Bmw should be forced to recall and replace the tanks.”

“The gas tank on these f-series (F650GS, f800gs) Bmw motorcycles is a known (nationwide, and worldwide) problem. The gas tank develops cracks along a particular area on the side. This happened twice to the vehicle I own, in april of 2015, and now in august, 2015. The first time it happened on my motorcycle, fuel was actually leaking out of the tank. Now it is a deep crack that a person can fit a fingernail into, it is that wide. I expect fuel to leak out of it again soon. The local dealer warrantees the tank, but the issue continues. …”

“This component had failed multiple times on this vehicle (about twice per year) since new. The component that is replaced each time has been the fuel pump controller (small electronic device mounted on top of the fuel tank). I am about to purchase my fourth one. The unit typically fails when ambient temperatures are above 90f. When this fails, the fuel pump works intermittently. Sometimes this has happened at low speeds on gravel roads, causing great difficulty keeping the bike upright as it comes to a stop. Other times has been on the highway. …”

“I was traveling on interstate 95 south in maryland near columbia doing approximately 65 MPH and had to slow for traffic ahead. I slowed to 50 MPH and disengaged the clutch to shift gears and the engine stalled. I was not initially aware that it had stalled due to the general traffic noise. When I engaged the clutch in the lower gear my rear tire skidded and I almost lost control of the bike. Then I realized the engine had stalled. I was able to roll start the bike by shifting to yet a lower gear and engaging the clutch rapidly but the engine stalled almost immediately again. …”