Why is my just-serviced 2004 Honda Shadow Aero leaking gas from under the air filter cover when running?

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A cover crop seed I just wanted to grow to plant as an intentional weed in the garden here and in NJ. I plan to fight weeds through intentional companion cropping. This is a legume.

Question by Ben: Why is my just-serviced 2004 Honda Shadow Aero leaking gas from under the air filter cover when running?
I had my ’04 Aero serviced on Wednesday, July 25 (routine 12,000 maintenance; it’s never had any problems). I rode the bike to work & back on Thursday. This morning (Mon July 30) it started spitting gas whenever it’s turned on, apparently from under the air filter cover; hasn’t been touched since Thu. There’s a little spinning knob under the cover (not inside; just beneath it) that I think is the idle adjustment (based on a friend’s thought after explaining the problem), & the gas appears to be coming from here.

I admit to not knowing much about bike maintenance. Same friend suggested the problem was probably a hose the shop put on too loosely, or wrong size, etc, which would make sense since the problem cropped up after the maintenance, & suggested I open the filter cover & poke around for some loose / missing tubes. I couldn’t find anything; it was a bit dark outside, but I found no tubes at all.

In the morning I hope to find my manual & see what it has to say. Can anyone help me?

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3 Responses to Why is my just-serviced 2004 Honda Shadow Aero leaking gas from under the air filter cover when running?

  1. Take off your air filter and check the hose line from the fuel tank to the carburetor. Either the connection is loose or you may have a leak somewhere further up the line. If that’s not the case, you may want to think about having your carb re-jetted (even if you have EFI).

    air_hitch
    January 7, 2012 at 4:14 am
    Reply

  2. STOP! Do not do anything, this is a good time to tell the shop how disappointed you are with their service. Yes the problem is more likely a loose fuel line, but you paid good money for service. Tell tell them the time line when the problem was discovered, inform them how time is very valuable and that you have to go out the way so they can fix the problem for no extra charge because they are responsible. Maybe they might give you a discount on a future purchase because they do not want a disgruntle customer. If any thing, they will take a look at it and fix it on the spot if it’s no big deal. Call them first chance you get. Even if it’s a simple fix, and you fix it yourself call them; let them know who you are and what you think about their shop and what you expect out of them when and if you bring your bike back to them. ( But if you insist on doing it yourself you should check the fuel line that connects form the tank to the carb.) ….. Hope things work out for you.

    ?#%!Baker
    January 7, 2012 at 4:49 am
    Reply

  3. Besides leaking gas, does it run right? Is it carburated or injected? If it’s spitting gas and running poorly and it’s carburated, you may have a stuck float valve in the carb causing it to flood out.

    Take it back to where you had it serviced and tell them to fix it. period

    phil j
    January 7, 2012 at 5:13 am
    Reply

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