Exhaust port leaking fuel. Is this possible ?

[jar75]

Ok so before I send my 05 f carbs off to Buddha ( which I plan on doing anyway ) I decided to make some room in my storage spot where my bikes are and try to fire em up. The carbs definitely need to be looked at but I threw A new battery in it and some fresh gas in the the empty fuel tank. After finding cracked fuel lines, etc I got it to fire on choke only. Well, after running it for a big I found a leaking fuel issue. Nope, not in the usual spots but from what appears to be the left cylinder exhaust port. I found it dripping from one of the exhaust bolts. Now background on the bike. I picked it up many years ago with an original 2,000 miles on it. Bad side; bad wreck from what I can tell. Forks were shot and after looking at it again the tire may havd made contact with the header tube between the exhausts. This doesn't sound right , and I'm hoping it only has to do with something carb related. I've never had this bike on the road yet.  It was leaking out of the top fuel/overflow tube on the carbs. Any ideas guys ? Also I have an extra set of 89 carbs if it makes it easier to have those rebuilt and bypass the PAIR system.  Here's a link to the leaking port;

http://youtu.be/5GWw33dwui0

[robfriedenberger]

 

Are you sure its fuel and not a fuel/oil mix? How dose it smell ?

If your 100 percent sure its fuel the only way it could get there would be the tank is leaking, or you have fuel in your oil and its seeping past your valve cover gasket.

Clean it up really good and cover the bike with baby power, youll be able to find the trail

[jar75]

Thanks for the response rob. I did think of the oil/fuel mix and checked the viscosity of where it's dripping but seems like raw fuel. I will have to dig deeper.

[gsJack]

After I restored my totaled 97 and was using the 02 I left the 97 parked on the center stand for some time with the frame petcock on prime.  When I went back to run it once again a couple weeks later I checked the oil and it was a good pint maybe more overfull and smelled strongly of gas.  Obviously a carb needle valve was leaking.

Seems to me the gas leaks forward into the engine with the bike on the center stand and backwards into the air box when the bike is down on the side stand.  I think it might be possible for gas to leak into the exhaust port if piston happened to be at top of scavenger stroke with both valves open when it was parked on the center stand?

[jar75]

Thanks Jack! I'm sending out all of my carbs to Buddah and I'll have him run through the carbs and start there. I plan on doing an oil change and checking everything else out meantime.


etc

After I restored my totaled 97 and was using the 02 I left the 97 parked on the center stand for some time with the frame petcock on prime.  When I went back to run it once again a couple weeks later I checked the oil and it was a good pint maybe more overfull and smelled strongly of gas.  Obviously a carb needle valve was leaking.

Seems to me the gas leaks forward into the engine with the bike on the center stand and backwards into the air box when the bike is down on the side stand.  I think it might be possible for gas to leak into the exhaust port if piston happened to be at top of scavenger stroke with both valves open when it was parked on the center stand?

[Joolstacho]

Those ol' brain cells still working ok Jack.
(Clever bugger!)