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Strong Gas Smell on start up and at stops

Started by darb85, June 13, 2007, 07:22:24 AM

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darb85

Recently ive notices a quite strong gas smell when at stops and after initial start up.

Ive searched everywhere on the bike and cant find a leak anywhere, the tank doesnt even have rust inside it.  is this normal?  I dont remeber smelling it when i was first riding it. 

Ive stopped a few times in the last few days to see if there was a leak some where, I checked out the carbs, no gas on the out side of those, in fact no liquid anywhere on the engine or frame or anything!

THanks yall
2000 GS500E
K&N Drop in, Custom Turn signals, Kat Rear Shock, Pirreli Sport Demons, Woodcraft Rearsets. Kat Front Forks, Race tech .90, 14t

Nuff

I've the same problem as you and it started happening after I dropped the bike on it's right hand side, I can't remember it being a problem before. But then I only had it for one week, before I've dropped it :(

darb85

I havent dropped it.  thats whats baffeling.  No damage that would be an obvious cause.  its driving me nuts
2000 GS500E
K&N Drop in, Custom Turn signals, Kat Rear Shock, Pirreli Sport Demons, Woodcraft Rearsets. Kat Front Forks, Race tech .90, 14t

Nuff

I can also smell some burnt smell, like plastic/rubber/oil. I'm going take a loot at it on weekend, since I will have to pull fairing off from mine.

Egaeus

I had a similar problem.  Gas was leaking from a bad seal on the T where it goes into the carb, and getting on the engine. 

You have a gas leak, probably near (or from) the carburetor.  Try turning it on PRI and see if you can located it.  That's how I discovered mine.
Sorry, I won't answer motorcycle questions anymore.  I'm not f%$king friendly enough for this board.  Ask me at:
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ben2go

COULD BE THE PETCOCK IN THE BOTTOM OF THE TANK LEAKING,sorry for the caps,if it's hot out the tank will vent vapor through the cap and right up your nose
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darb85

Quote from: ben2go on June 13, 2007, 08:20:06 AM
COULD BE THE PETCOCK IN THE BOTTOM OF THE TANK LEAKING,sorry for the caps,if it's hot out the tank will vent vapor through the cap and right up your nose

Ill bet money thats it! been 85+ here and thats when I started smelling it!

Wow kinda feel dumb now :icon_rolleyes:

Quote from: Egaeus on June 13, 2007, 07:51:37 AM
I had a similar problem.  Gas was leaking from a bad seal on the T where it goes into the carb, and getting on the engine. 

You have a gas leak, probably near (or from) the carburetor.  Try turning it on PRI and see if you can located it.  That's how I discovered mine.

Tried all that,  Went as far as taking the tank off(it has a longer hose so i dont have to disconnect :) ) looked--no gas stain, liquid nothing, but ill bet its venting vapor out the cap as its been so hot here recently.
2000 GS500E
K&N Drop in, Custom Turn signals, Kat Rear Shock, Pirreli Sport Demons, Woodcraft Rearsets. Kat Front Forks, Race tech .90, 14t

ohgood

Mine smells like that occasionally also. Doesn't matter if it's a full tank or not. The smell is usually on HOT days ( >85 ) and there is no evidence of a leak.

Seems like its only venting, or maybe the junky carbs losing fuel into the air filter. Don't know or care so long as there isn't evidence on the crankcase or other nether regions.

Ride on.


tt_four: "and believe me, BMW motorcycles are 50% metal, rubber and plastic, and 50% useless

Nuff

Since I'm from Australia it's pretty cold at the moment, 8C which is around 45F.

I will have a good look on weekend where it's leaking, when I dropped the bike fair bit of fuel spilled, but I've been told that this is normal.

ben2go

Quote from: darb85 on June 13, 2007, 08:28:17 AM
Quote from: ben2go on June 13, 2007, 08:20:06 AM
COULD BE THE PETCOCK IN THE BOTTOM OF THE TANK LEAKING,sorry for the caps,if it's hot out the tank will vent vapor through the cap and right up your nose

Ill bet money thats it! been 85+ here and thats when I started smelling it!

Wow kinda feel dumb now :icon_rolleyes:

Quote from: Egaeus on June 13, 2007, 07:51:37 AM
I had a similar problem.  Gas was leaking from a bad seal on the T where it goes into the carb, and getting on the engine. 

You have a gas leak, probably near (or from) the carburetor.  Try turning it on PRI and see if you can located it.  That's how I discovered mine.

Tried all that,  Went as far as taking the tank off(it has a longer hose so i dont have to disconnect :) ) looked--no gas stain, liquid nothing, but ill bet its venting vapor out the cap as its been so hot here recently.

It's been in the upper 80's to upper 90's here.Get the fuel smell quite often.
PICS are GONE never TO return.

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