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dwsonar

Fuel Odor

11 posts in this topic Last Reply

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dwsonar

I've always had intermittent fuel odor problems, but now it's constant. Checked the filter clamps, and the fuel valve. No signs of leaks there or anywhere else I can see.

What can be some of the other culprits?

Also, the bike feels like it has less power. Could just be my imagination. RPM's  are still the same at various speeds, just doesn't feel like the same acceleration. Changed oil and filter, air filter, fuel filter, plugs recently. Don't find any brake drag. Planning on a carb sync soon.

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Dusty Boots

Might be a float sticking.

Has your fuel mileage dropped any lately? 

Did you check your slides for smooth operation when you were changing out the air filter?

Have you installed a new sub air filter?

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dwsonar

Sub air, about 5 years s ago. Mileage is very close.

Slides looked a little dirty. Sprayed with carb cleaner, ran sea foam for a few tanks.

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AZgl1800

is there any sign of dampness around the vacuum operated Fuel Petcock valve?

it is just forward of the gas cap if you aren't already aware of that.

 

the diaphragm on that thing is prone to developing leaks.

 

CycleMax has a repair kit for it.

 

http://cyclemax.com/inc/sdetail/gl1500_fuel_petcock_rebuild_kit/158744/20457

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Dusty Boots

How is the gasket on the fuel cap?

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dwsonar

How is the gasket on the fuel cap?

round

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dwsonar

I'll look next time I go out

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yooperfan

Dusty took my answer.  I try to start with the cheap and easy fix and proceed from there.  

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dwsonar

fuel cap gasket looks good.

Something I forgot. A fewweeks ago, I started having idle issues. That's why I changed everything. Lots of seafoam, idle, cool,repeat. Got it back to a smooth idle. Today, idle increased about 200. Still smooth, just faster. Also seemed to run better. Didn"t smell gas as much, if at all. Maybe the seafoam is working it's way to where it's needed.

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Hot Rod

I had a similar issue with my 2000 GL1500 after riding for the day it would always smell when I put it in the garage. A can of Seafoam did the trick for me.

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yooperfan

I have a thought but that doesn't mean it has merit.  Does the exhaust have weep holes on the bottom, to drain moisture.  My 1200 LTD did, at least that's what I assumed they were.  They were somewhere just behind the footpegs, if I remember right.  That put a small amount of exhaust right near my feet all the time.  MrsY said I smelled like exhaust after I rode.  Maybe your wing was running less than perfect and dumping raw fuel into the exhaust which then could be smelled after dripping out the weep holes, or even out the tail.  Using seafoam may have helped cure the issue, so no more raw fuel to smell from the exhaust.

Another thought would be to smell the air filter and housing.  Maybe the odor is from the intake instead of the exhaust.

The carb sync can do wonders for the idle and you might find a loose screw or a vacuum leak.

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