| Author | Message | ||
     Pb259773 |
What causes the gas to overflow out the hose on the left rear foot peg? Is there a solution for this issue? Did not over fill, ride for 30 minutes come home and it drips? | ||
| Zac4mac |
If it drips a little, it's not abnormal. But Brokengq is probably right. If you look you'll see the hole the cap fits in, but there's another below that. Don't fill beyond that hole. I'm 30-50 miles north of you and my 1125R rarely drips more than 1 or 2 drops... alcohol condensate. Z Also we have a pretty high % alcohol in our gas, 10-15% IIRC (Message edited by zac4mac on November 09, 2014) | ||
| Brokengq |
Just for clarification, where are you filling to? Anything above the area where the two sides meet is too much. As a second reference once you see the gas its full. Not trying to make you sound stupid, just want to make sure. | ||
| Stirz007 |
Lining the frame with thermotec helps a lot with this, especially on hot days/stop and go traffic. http://americansportbike.com/newdir/Item/16130 | ||
| Pb259773 |
No not overfilling as soon as is see gas I stop filling. If I remove the cap at home after I see it dripping it stops. But this fumes the garage. | ||
| Rhard |
I have a fan I put in front of the bike and it seems to keep it cool enough to keep the gas from expanding and stinking up the garage. | ||
| Rogue_biker |
Many bikes will do this, especially the older bikes. My friend has an older Ducati before the Charcoal Canister was required in CA. EVERYTIME he fills his bike it leaks a lot of gas at the vent line. The 1125's have a factory vent but it goes to the Charcoal canister underneath the pillion. Fuel vents into the can, and the can drips onto the subframe and then the ground. It's a bad location for the canister really. Go figure why Buell put it there knowing fuel will drip onto the subframe! The solution: remove the charcoal canister. Plug the hose that went from the canister to the engine. Reroute the vent hose from your fuel tank directly below the airbox where the coolant vent hose is located in. Cut the hose (it will be too long) and make sure it will drip to the ground and NOT on the exhaust whether your bike is standing straight up or on the side stand. | ||
| Sprintst |
My 2008 never drips My 2009 likes to mark it's territory all the time. I think about the only time it doesn't is with a new tank of cool fuel (drive is less than 1 mile home) Mine is NOT based on how full I fill. It will do it when it's 2 gallons down My 2009 has the factory foil on the frame (Message edited by sprintst on November 09, 2014) | ||
| Jimustanguitar |
I have a fan I put in front of the bike and it seems to keep it cool enough to keep the gas from expanding and stinking up the garage. Have any pictures? I'm curious. | ||
| Stevel |
I would think this has to do with the poor heat management all 1125's have. You fill with cool gas and your frame tank then heats the fuel and it expands. If there is insufficient expansion space, it overflows. There have been multiple threads on this issue. Tank heat comes from two primary sources. The first is that radiator waste heat is directed at the frame. The second is radiant heat from the engine itself, as the tank/frame completely surrounds the engine and there is no insulation. This also heats the airbox and the air temperature can easily exceed 20 degrees C above ambient. Please also note that heat reduces the effective engine power when both the inducted air and injected fuel is warm. | ||
| Rogue_biker |
Theotecially, if a bike's airbox sucks in air from a location free of engine heat, the engine heat radiating from below the airbox would have little effect on air temperature. As for hot fuel, that's a good point. But then again, most bikes have fuel sitting on top of the engine. Albeit, on an inline engine the fuel tank will normally sit well behind the cylinder heads. But on a V-twin or V-Four, the fuel tank will be pretty close to the rear cylinder as well. How much it affects power can probably be measured. But I doubt it has any significant effect. As long as coolant temperature is right around 180-190 F, engine should produce maximum power it's capable of. | ||
| Stevel |
Rogue Biker, Power loss is approximately 2% per degree Fahrenheit above 90F for fuel. You are correct on the air box, if the bike is moving faster than 40 mph, but below that as stated, the air temperature on the 1125 rises more than 20 degrees C above ambient and that also significantly reduces power. | ||
| Dannybuell |
I learn faster when I don't have to convert. 1C = 33.8F power loss is 2% for every degree above 90F. at less than 40mph Ambient = Ambient + 34F wouldn't ceramic coating the headers and frame be the correct response? | ||
| Sprintst |
The AT temp on the gauge is air intake temp. Mine runs well above ambient, even when moving quick. So it's not free from engine heat | ||
| Stevel |
Danny, My thoughts are to insulate the frame and air box against radiant heat and redirect waste radiator heat away from the frame. The first part is easy, although expensive. The correct material is from "Heat Shield Products" part number 180025 seam sealed with tape 179006. The second part is not easy and also expensive. I feel there are two solutions. The first is a single radiator like Ducati uses mounted in front of the engine, but there are space and airflow issues. The second is to use the two original radiators, one in front of the engine above the oil cooler and the second where the current headlight is. This will return the narrow perspective of a V twin and the looks would be immensely better, but would also force the relocation of the instruments, expansion tank, and the use of HID headlights.....a lot of fabrication and design. There are two schools of thought on the exhaust. The first group thinks insulating the exhaust system has both performance benefits as well as heat management value. The second group feels the opposite. I sit in the second group. My reasons on this subject should probably be in another thread. | ||
| Terrys1980 |
Trapping more heat in any glass packed exhaust will cause the packing to deteriorate faster than normal. |
