| Author | Message | ||
     Bobup |
Dave question is.....how hot is too hot at the tank/frame ? what should it be ? guess i need to take readings off my XB to get an abstract baseline | ||
| Zac4mac |
Ran mine just now in the garage. CT was up to 168˚ and the rear header was a very very dull red. Just barely glowing, had to cover the tail-light to make sure. I'm "cool" with that. Will be going down to my dealer today, have a few questions for the Buell Tech, Brandon. Any info on this supposed ECM firmware update I've heard rumblings about? Z | ||
| Chevycummins |
I have relayed all of my findings to Buell about the problems I am having. I just talked to Jon at Buell yesterday. My bike is still in the service department and they did not have a service manual for this bike. Stopped into the dealer today and now they have a service manual. I called Buell and they sent it out to them. I picked up my electrical book today and am waiting for the mechanical book. When I call Buell they know me by name before I tell them who I am. | ||
| Bobup |
ain't caller ID wonderfull...LOL | ||
| Pxl2562 |
just a few points i wanted to bring up while reading this thread. everyone using the infrared thermos, what emissivity are they rated for? most infrared thermometers are rated around .87 and bright metal pipe could be anywhere from .2-.8 and would cause large errors. also, when wrapping header pipes, beware: insulating the pipe could raise surface temperature of the pipe more than 100 degrees easily, and will shorten the life of the pipe significantly (corrosion accelerates at higher temperatures). i know i'm just pointing out negative stuff and nobody likes that, but i think the answer is to use some shielding to keep the heat off of the places you def don't want it to be, ie frame. on the upside, it's really hard to hear boiling fuel at 140 mph  | ||
| Davegess |
Bob are you asking me how hot is too hot? I would have no idea and no way of finding out. I just know that Buell will be trying to solve any problems found on this bike but the only way they can know about problems is if you go to the dealer with them. This board does not serve as a reliable conduit to the people who need to know. | ||
| Chevycummins |
I thought about the pipe overheating and causing the to crack because of the extra heat from the wrap. That is a chance I thought I would take. Most infared temp meters don't read accuratly especially if the surface being tested is not black. I used it to just get an idea of the temp and it is really hot! | ||
| Unibear12r |
I have to agree, take it to the dealer as I said before. Mine went up on Tuesday. The main reason I posted is that I would have felt like a real butt if someone got hurt and I hadn't given warning. | ||
| Dre99gsx |
Alright. I had the fuel boiling problem today. It was hot out and I rode for about an hour. Got home and looked at the bike. Frame was definately hot. Put my ear towards the fuel vapor line and heard a loud hisssing. Capped it with my finger and it stopped. Obviously, whats seems to be going on is engine heat heating up the fuel. The relief valve seems to work in letting out the pressure slowly, but that is DEFINITELY what causes my fuel smell everytime I get home. It makes sense, these bikes need an EVAP canister. I'm sure they sell small ones for bikes. A charcoal canister will resolve the fuel smell. As for the boiling fuel, very good idea on wrapping part of the frame. I will give that a try. I wonder if the CA bikes have the same problem. Hot boiling fuel would definitely be a cause of detonation as well (and power loss). I don't remember this issue on the demo bikes at ONE PASS. Anyway, any comments on adding an EVAP? | ||
| Unibear12r |
Dre99gsx reread above. My bike is a Cali bike. Adding the evap cannister does stop most of the smell but seems to make other matters worse. | ||
| Bob_thompson |
My first day riding vigorously in near 80 degrees. Coolant temp. 176-180, never higher but when I pulled into the garage, my wife detected a smell of gasoline. Frame warm but not hot. About half a tank left. I suspect it was just venting properly. No hissing or boiling but I filled it up with cool fuel as Zac has suggested and all was fine. "I love the smell of gasoline in the morning" Its in my blood. Seriously though, I do sympathize with those who are having real troubles in hotter climes. Bob | ||
| Dtx |
I was the one that put Cool Tape on my frame a little while back. In cooler outside temperatures (less then 70 degrees) the Cool Tape prevented the boiling gas. However, today was probably the first warm day of the year here. Rode about 75 miles with fill up towards the end of the ride. Air temps were in the upper 80's and coolant temp got up to 200. When I got home I was disappointed to find the gas was indeed boiling...even with a full tank of gas. Regardless, the ride was awesome. The bike has incredible power and makes be grin ear to ear. I'm outta ideas now. I was hoping the cool tape would fix it, but it only helped when the air temps were lower. I think its probably time to report this to my dealer because up until now, I did not think it was that big of a deal. Maybe its not... | ||
| Hayabusa |
Been there, done that. BMC has nothing for the boiling fuel. My tech told me that it is caused by the fuel pump and it is normal. Maybe you will have more luck than I did. | ||
| Cmonkey |
So I guess it's back to pointing a fan at your bike at the end of a ride? Conjecture here: The bike probably didn't have a boiling fuel issue on the pre release units. (riders just got a cooked foot) The heat shield saved your foot, but the boiling fuel is probably the consequence. I'll bet the heat shield is not letting enough air convect past that high heat area after the bike is parked. Pointing a fan at it will help. Hopefully everyone who experiences it, reports it. | ||
| Dre99gsx |
Dtx, try riding without the foot shield and or the exhaust shield. Curious if both those shields are trapping heat in. | ||
| Citified |
I have the bad fuel smell also but I dont have alot of pressure or boiling gas. I am beginning to think it is the nature of the beast. By the by, I just got back from a four hour ride and I couldnt be happier with this bike.  | ||
| Ponti1 |
So, is there nobody with a fix for the boiling fuel so far? The only thing I remember seeing is Dtx and the reflective tape...Anyone else have success in warmer weather? | ||
| Bueller_bjorn |
I cool taped my frame on the inside the best i could reach with my fingers and wrapped my headers, not a true fix b/c ive still had a boil once so far but not nearly as bad was before i taped and wrapped. It takes much more to boil it now and keeps my frame/tank around the same temp as my XB12r used to get after a ride but still hear a little bubbling hear and there but much much better so far. | ||
| Hayabusa |
Has anyone tried wrapping their headers? I know some cars that have it and you can touch the headers while the car is running...any thoughts? | ||
| Blake |
I wonder if this issue will subside once the supply of Winter gasoline is depleted? | ||
| Doerman |
I have little to no experience with the boiling fuel on my bike. I can, however, report this: The one and only time I had a hot frame and pressurized tank was when my Front O2 sensor was malfunctioning. Once the O2 sensor was replaced, no more issues. This definitely falls in the FWIV category. | ||
| Ccryder |
2400 miles no boiling fuel (watch it happens to me today). Anyway, is a problem? Why is it a problem? Or is it just a perceived problem? I guess it gets back to PV=nRT. There were some reports on the ST1300's with "boiling" fuel. Mine hasn't done it in 82,000 miles, as far as I can hear. I'm not trying to diminish anybody's issues and experiences but, what is the issue? Educate me. Thx Neil S. | ||
| Unibear12r |
I suppose that to the 49er's it just means a very fume filled garage and a reduced range per tank. But the one time my tank vent hose was left off the Cali evap canister it filled the garage with with a scary amount of fumes. I can't speak for the other Cali owners but I've found that it's quite hard to tell when the fuel was boiling. I didn't think it was last Sunday, but it was doing so profusely. I couldn't tell until after the cap was off which would have been a bit late for my face and eyes if I hadn't been cautious and used two hands to block and ease the pressure. For about 20 to 30 seconds. Now I'll always do that every time. I think the high pressure and spewing hot fuel is only happening to the Cali bikes and it's a hit or miss thing. But it's a crap shoot weather or not some unwary Bueller gets a face full of hot fuel out here before the summer's out. That is if this continues. My bike is ready to come back with no changes or fixes at this time. Local temps dropped twenty degrees in the two days it took me to get to the shop (they were closed) and they could not reproduce the problem. They know the problem exists as this is the same shop that AlanS's 1125 spewed fuel right in front of the tech and SM. Everything on my bike checks out fine. So I'm going to ride it and be careful for the possible fuel spray. But with the trouble code I've got to wonder weather I'm going to run into functional problems on the longer and hotter rides this summer. Impatience won't help you here. It's unlikely we'll hear anything on this for a while. I doubt Buell will rush into a quick fix that might cause other problems so I'm just going to carry on for now. | ||
| Chevycummins |
Hayabusa, I warped my rear exhaust pipe and put about 100 miles on it this weekend and no boiling gas. The tank still gets a little warm but did not boil after a 50 mile ride. Still has a little gas odor from the vent but not hissing like before. Check out archive through April 18,2008 for my pictures. | ||
| Dtx |
I think he meant to type wraped...not warped. (Message edited by dtx on April 21, 2008) | ||
| Chevycummins |
Oops! | ||
| Doerman |
Or maybe "wrapped"  sorry could not help myself | ||
| Chevycummins |
Ccryder, My issue with the boiling gas is that it will fill up my garage and house with gas vapor. My bike is not a California bike so it just vents the fumes out a hose near the muffler. When it was colder out the vent hose would actually drip gas on the muffler after the bike was shut off. Another problem I had was a low fuel pressure code sets when the gas was boiling really bad. It also would idle poorly when it was having the fuel pressure problem because of the boiling gas. I had to leave the bike outside after a ride to cool off so my house and garage would not have the gas smell, I was afraid that my furnace may ignite the fumes! Now after I wrapped the rear exhaust pipe the gas does not boil and the fuel smell is slight sometimes. | ||
| Ccryder |
Michael: All real and valid concerns. I just wonder why mine and more than few others do not exhibit this issue. If mine was flooding my garage with fumes, my 25r would be stationed at the Dealer. Thx Neil S. | ||
| Josh_ |
If you want a 25R to fill your garage (and house) with fumes I can come visit! |
