| Author | Message | ||
     Desert_bird |
My Uly is beginning smell more and more like a gas station these days. Before it was only when real hot and on a full tank, when the overflow tube expunged some extra expanded fuel, but these days it just smells gassy whenever I stop it. No, I don't feed it beans. Only about 10K and recently serviced with no probs Any ideas or similar experiences? | ||
| Armymedic |
That happened to mine, then the rear plug fouled. Once I changed the plug, no more gas smell. That was at 5K. | ||
| Ft_bstrd |
You've either got a leak or unburned fuel. Plugs changed at service? Stock ECM? No leaks in vent tube? It runs from the vent, over the airbox, and down the left side. | ||
| Desert_bird |
Bike just back from 10K service. Plugs were changed (but not fork oil: They say only at 20K). Everything's stock, down to the original air filter that it came off the floor with. Leak? Hmm. The vent tube is definitely smelling gassy at the outlet on the left side where it ends. Where does the vent originate? and does it just vent all the time or only when there is overflow? Thanks in advance. (Message edited by desert_bird on November 03, 2008) | ||
| Froggy |
Fork oil is every 10k. I just confirmed with the 2008 owners manual. | ||
| Desert_bird |
You're quite right Froggy. My manual says the same. I gather that the Buell has dealerships exercising more discretion and some techs think 10K is still too early for new fork oil: Comes out same color and viscosity as going in. Go figure. As long as they still honor the warranty . . . | ||
| Ft_bstrd |
If you remove the airbox, the vent begins at the upper right quadrant of the base plate to the right of the filler. There is a rubber tube that runs from that point, over the inner airbox and down past the left frame rail. You could always replace that tube. It may have a small split or crack in it or may not be fully seated on the vent nipple. Do you wash your bike often? You might wash it and see if there are any fuel spots showing up anywhere. I doubt that you have a crack in the frame somewhere, but it could happen. | ||
| Desert_bird |
Ft_bstrd, does the vent tube just constantly vent? (yes, stupid question.) Over time, wouldn't the tank lose quite a bit of actual fuel due to forced evaporation? And do you think that anything would make the vent breath/exhaust more than usual, other than too much fuel in tank or excessive heat? | ||
| Ft_bstrd |
As far as I know, It's a constant vent system. Fill it beyond the neck after a hot run or on a hot day and you get a really nice puddle. I stepped in Barker's yesterday.  It's designed to allow for evaporative release but only under pressure. Because it vents up and over, I presume that the evaporative loss is reduced. | ||
| Barker |
my bike has prostate problems.  | ||
| Cyclonedon |
my Uly has a big-ass problem! It's my big ass riding it! But I'm not complaining! | ||
| Bertotti |
My wife is happy I don't have a constant vent system!  | ||
| Desert_bird |
All stinky jokes aside, (. . . incidentally no one won the prize but fatty was close.) I finally located the problem. A faulty fuel tank vent valve - the little gizmo to the upper right of the air filter. When broken instead of acting like a on-way pressure valve it just becomes an open tube to the tank. (Message edited by desert_bird on November 06, 2008) | ||
| Rahbert |
Mine also does this - where is this valve? I fear that someday that puddle may ignite with me on it and I'll turn into a flaming a******! I'm almost ready to consider a can. | ||
| Desert_bird |
Valve sits on the top of the fuel tank directly right (3 o'clock) of the fuel filler cap. Take off two small hex bolts and it's off. Apparently you shouldn't be able to blow into the line coming off the top of the valve (one way valve). I think that the valve is also spring loaded so that a certain amount of pressure in the tank needs to build up in order to open the valve. If that mechanism isn't functioning properly then, liquid fuel which gets sloshed up into the body of the valve when riding continues to make its way through the valve and just drains down. This is probably exasperated with a full tank or a hot motor when built-up vapors force that liquid fuel down the line. That may explain your puddles and all those fumes and gassy smells. | ||
| Cityxslicker |
did somebody put an open can of sardines in your airbox? |
