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Hoss1775
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« on: August 04, 2014, 09:38:39 AM » |
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I have a 98 Valkyrie Touring that emits a pretty strong fuel odor after shutdown for about 15 minutes. There is no evidence of a leak on the ground or around the carbs, fuel petcock or vent tube. Any ideas on this would be greatly appreciated.
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Jess from VA
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« Reply #1 on: August 04, 2014, 10:22:36 AM » |
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Gas cap gasket.
If so, sister up an inner-tube duplicate on top the old one.
Also, I think someone found a large diameter, thin Oring that they popped on the underside of the cap.
Only thing, many have reported the smell to last longer than 15 minutes, is where it's parked enclosed or well ventilated?
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doubletee
Member
Posts: 1165
VRCC # 22269
Fort Wayne, IN
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« Reply #2 on: August 05, 2014, 04:48:31 AM » |
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Grasping at straws here......could it be that after parking it, residual heat from the motor is heating the fuel in the tank causing it to expand and forcing fumes out of the vent? 15 minutes would probably be in keeping with the fuel then cooling enough to contract and stop the venting of fumes.  Like I said, just a WAG. |
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Willow
Administrator
Member
Posts: 16634
Excessive comfort breeds weakness. PttP
Olathe, KS
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« Reply #3 on: August 05, 2014, 05:05:04 AM » |
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Grasping at straws here......could it be that after parking it, residual heat from the motor is heating the fuel in the tank causing it to expand and forcing fumes out of the vent? 15 minutes would probably be in keeping with the fuel then cooling enough to contract and stop the venting of fumes. Like I said, just a WAG. Tony, despite what some folks may say, liquids don't significantly expand or contract with temperature. That's why hydraulics work. |
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nogrey
Member
Posts: 939
Live every day as if it were your last
Nampa, Idaho
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« Reply #4 on: August 05, 2014, 06:40:39 AM » |
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I have a pretty strong gas odor about an hour after eating mexican food. Any ideas?  +1 on the gas cap gasket, for the original serious question. |
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Jess from VA
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« Reply #5 on: August 05, 2014, 07:17:13 AM » |
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I have a pretty strong gas odor about an hour after eating Mexican food. Any ideas?Here you go.  Or this, depending.... 
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Hoss1775
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« Reply #6 on: August 05, 2014, 08:26:42 AM » |
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Thanks to all for the ideas, will check out the Gas Cap Seal right away, will update once I confirm the fix. Happy riding!
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Gryphon Rider
Member
Posts: 5227
2000 Tourer
Calgary, Alberta
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« Reply #8 on: August 05, 2014, 10:01:45 AM » |
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Grasping at straws here......could it be that after parking it, residual heat from the motor is heating the fuel in the tank causing it to expand and forcing fumes out of the vent? 15 minutes would probably be in keeping with the fuel then cooling enough to contract and stop the venting of fumes. Like I said, just a WAG. Tony, despite what some folks may say, liquids don't significantly expand or contract with temperature. That's why hydraulics work. No, but the fumes that occupy the empty part of the tank are a gas, and gas DOES significantly expand with a raise in temperature. I have not noticed a temporary gas smell with my bike, however. |
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Hoss1775
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« Reply #9 on: August 24, 2014, 10:10:50 AM » |
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Thanks again to all for the tips, I did find the culprit, there was a leak in the petcock. I decided to go the easy route and replaced the Petcock assembly. Works great, no repeat of fuel odor. I do realize that a repair kit would have probably done the trick but I am a go all out kind of guy so just replaced the whole thing.
May all of your travels be safe and event free.
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