Fuel puking out overflow line

NoVa Rider · 08-23-2015, 10:48 AM

I don't think we have a good idea yet why some bikes are collecting "gas" (probably condensed unburned gas) in the vent drain tube. I don't think valve adjustment settings should be a factor, but who knows?

I had some problem with this, though not as bad as detours describes. I moved the vent line that runs past the cylinder up and out of the "holder" fitting, and also changed the ziptie that holds a bunch of the lines together a few inches back from the cylinder. I suspected that the holder/zip tie might be too tight, constricting the vent line that runs back to the airbox. Since I did this, I have had no further problem with "gas" dripping out the vent tube drain. But I am not convinced I have really "fixed" it.

Detours might try these simple changes and see if it makes any difference.

08-23-2015, 10:48 AM	#11
NoVa Rider Join Date: Jan 2015 Location: Northern Virginia Posts: 144	I don't think we have a good idea yet why some bikes are collecting "gas" (probably condensed unburned gas) in the vent drain tube. I don't think valve adjustment settings should be a factor, but who knows? I had some problem with this, though not as bad as detours describes. I moved the vent line that runs past the cylinder up and out of the "holder" fitting, and also changed the ziptie that holds a bunch of the lines together a few inches back from the cylinder. I suspected that the holder/zip tie might be too tight, constricting the vent line that runs back to the airbox. Since I did this, I have had no further problem with "gas" dripping out the vent tube drain. But I am not convinced I have really "fixed" it. Detours might try these simple changes and see if it makes any difference.
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