I'd say float level to high had the same problem. I got rid of the pump and readjusted the float using Odo's method carb hasn't puked since, heres the link for the float work.

http://weislake.com/sig/mucker/carb/carbfloat/carbfloat.htm

Roadhog1243 wrote:
I bought my first bike about a month ago its a 2000 road star 1600 and i absolutely love it! The other day me and a buddy went on a short ride about 80 miles. When we got back i pulled my bike into the garage and shut it off. As we stood there talking for a minute we heard a spitting sound and then a sizzle coming from my bike. As i was looking it over it did it again and thats when i saw gas spit out of a 90 degree brass elbow on the side bottom of my carb. It hit the motor and made a sizzling noise. Anyone have this problem? Is it normal? Also when we left i had right at about a half a tank of gas and when we got back the gas light was about to come on. Upon further inspection i notice a spatter of some burned or chared substance on the front of the side cover and on the top of the motor casing right below that. Anyone have any ideas?
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Thats a classic carb puke issue that generally happens when carb heat soaks for just a min or so post hot shutdown because the fuel is litterally being boiled out of the carbs float bowl which isnt an improper float lvl issue.

It's worse with winter blend fuel that boils at lower temp then summer blend fuel does.

My 06 silverado used to puke fuel in 55-60 deg temps which i fixed & now is good to 98 deg F which at my age is the hottest temp i can handle riding in anymore!!!/LOL!!!

I corrected 2 other R*s that were puking fuel with the same fix i came up with which cost approx $20 for supplies & 2-2.5 hrs of very easy low tech work.

The 1st time my bike puked fuel it spit fuel out all on the lower portion of the rear cyl/pushrod tube etc sizziling and making a lot of white smoke showing the fuel was extreemly close to igniting with a full tank of 5 gals of fuel !

That was my 1st experience with the carb puke issues i later found many R*'s had which Yamaha never really addressed which was a crime IMHO!

I also read about some R*'s actually catching fire when puking fuel on a hot motor & exhaust pipe or when the motor backfires thru the carb when trying to fire up the motor at the same time the carb starts puking fuel so you need to address that from a safety point of view IMHO.

I sent/PM'd you info on corrrecting it which includes 1st relocating the hose the carb pukes fuel from to exit below the bikes motor & frame to keep fuel off the motor & pipes if it ever puked fuel again from the carbs float chamber vent tube so it ends up on the ground and not a hot motor.

Scott

Thanks alot guys for all your help. As soon as i get time i am going to use the advise you guys have provided and see if i can solve this problem. Thanks again guys really.

could you pm me the info on correcting this carb flooding after shutting of the bike problem

scottw wrote:
[quote]Roadhog1243 wrote:


I sent/PM'd you info on corrrecting it which includes 1st relocating the hose the carb pukes fuel from to exit below the bikes motor & frame to keep fuel off the motor & pipes if it ever puked fuel again from the carbs float chamber vent tube so it ends up on the ground and not a hot motor.

Scott

Scott can I trouble you on snding me that info also. Is it on the tech page as a resource? Thanks!

Hello everyone. I am new to this forum and I'm grateful that such a forum exists. I have just purchased a 2006 Road Star Midnight star. I bought it used and it has roughly 8500 miles on it. I recently got it certified and everything checked out no problem. Since owning it, I've riden it 3-4 times. Yesterday was the fourth time. The weather was warm (about 70 degrees). I drove for half an hour, stopped at a store and when I came back to start the bike, I smelt gas. I tried starting it again and gas was pouring all over the engine. It appeared to come from the behind the air filter. I've never experienced anything like this in the past. My last Yamaha bike (vstar 1100) I drove for 10 years and never had an issue. This is kind of scaring me.

I called the previous owner and he said nothing like that has ever happened to him before either. I'm not that skilled at mechanics myself, but I'm just wondering if this is the carb spitting, or gas puking that everyone is talking about? Or could it just be that a full line popped off?

Anyway help or suggestions would be greatly appreciated.

Thanks in advance

06midnightstar06 wrote:
Hello everyone. I am new to this forum and I'm grateful that such a forum exists. I have just purchased a 2006 Road Star Midnight star. I bought it used and it has roughly 8500 miles on it. I recently got it certified and everything checked out no problem. Since owning it, I've riden it 3-4 times. Yesterday was the fourth time. The weather was warm (about 70 degrees). I drove for half an hour, stopped at a store and when I came back to start the bike, I smelt gas. I tried starting it again and gas was pouring all over the engine. It appeared to come from the behind the air filter. I've never experienced anything like this in the past. My last Yamaha bike (vstar 1100) I drove for 10 years and never had an issue. This is kind of scaring me.

I called the previous owner and he said nothing like that has ever happened to him before either. I'm not that skilled at mechanics myself, but I'm just wondering if this is the carb spitting, or gas puking that everyone is talking about? Or could it just be that a full line popped off?

Anyway help or suggestions would be greatly appreciated.

Thanks in advance

Based on the symptoms you described, I'd say yes. The Gas sitting in the carburetor, which is just fine when the scooter is driving down the road, gets really warm, expands, and looks for a way out, when the bike is parked right after driving it.
The warmer the weather, and the harder you ride the bike, the worse it can become. Some folks have rerouted the vent line from the carb, to some place under the bike to keep the fuel off the motor. Others have gone the "pumpless" route.
I would imagine the previous owner had it happen to them also....just sayin . They may not have been next to the bike while it was dumping fuel.

Hi Scott could you please send me the way to fix this carb puking problem?? Thanks

my 99 Silverado never puked gas--but after reading about lots that do--I just turn off the fuel petcock while going up the driveway, letting her idle while I open the garage door, pull her in and shut her down--I guess this burns some fuel from the carb float bowl--just what I do--maybe this will help others. Or if stopping on the road while riding---turn off the petcock and let her idle for a minute or two while you take off your riding gear--just an idea

ride2escape wrote:
my 99 Silverado never puked gas--but after reading about lots that do--I just turn off the fuel petcock while going up the driveway, letting her idle while I open the garage door, pull her in and shut her down--I guess this burns some fuel from the carb float bowl--just what I do--maybe this will help others. Or if stopping on the road while riding---turn off the petcock and let her idle for a minute or two while you take off your riding gear--just an idea


Good advice. I hope 06midnightstar06 is still watching(reading) For those that don't want to tinker, don't have the place, etc. this is probably a good solution. It'd get rid of(relieve the pressure)the fuel sitting in the line between the pump and the carb, and use up any fuel the bike could still suck out of the bowl while idling.