Question about Harley Davidson XL 883C Sportster Custom Motorcycles

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Small fuel line at bottom of carb Where dose it go?

The small fuel line goes up maybe to the tank? When fuel is on the small line leaks gas. What dose it go to?

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  • Harley Davidson Master
  • 39,936 Answers

Hi Roy, that is an overflow line that should never be attached to anything and points to the ground. Have nice day.

Posted on Jun 22, 2015

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6ya6ya
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Posted on Jan 02, 2017

  • 320 Answers

SOURCE: Gas leaking from bottom of carb on 90cc ATV

yes there is a tube that goes on it. It hangs straight down about an inch or two past the botom of the 4 wheelers frame. It is for a overflow of gas, which is usally caused by either dirt in the carb holding the float to high and allowing the gas to just run straight thru and out the bottom of the carb or a bent or maladjusted float setting. But since you said it just started, i would suggest this. I have fixed many and many bikes by simply removing the carb bottom and cleaning it with carb cleaner. It onlty takes a small piece of dirt between the float needle to keep the needle from making a good seat in the carb. Clean it well Please be carefull and keep the carb well away from your face as to not get any blowback of cleaner in your eyes(IT BURNS) This should fix your probblem

Let me know

Posted on May 31, 2009

OneRide
  • 379 Answers

SOURCE: HD 1979 fatboy fuel petcock valve leaking

Replace the petcock. The rubber diaphragm is ruptured. I'd also bet your fuel mileage dropped cause the ruptured diaphragm is allowing raw fuel to be sucked into the intake manifold.

Posted on Jul 23, 2009

  • 1 Answer

SOURCE: gas leak from carb drain hose

I had this same problem on my DRZ-110.
I took apart the carburator to clean everything out, but when i re-assembled it it started to leak gas out of the drain hose. Then i found out that the problem was that one of my gaskets were torn and were letting air in the drain which prevents it from being a vacuum, therefore causing gas to leak out.
I would first check the float & make sure it isnt stuck, then i would check all of the gaskets and make sure they arent torn, & replace the ones that are, even if theyre slightly damaged they can still let in air.
Your carb has to be 100% sealed & vacuumed to prevent any leaks & for it to work fine, so get those gaskets checked out

Posted on Jul 28, 2009

slave2aslave
  • 302 Answers

SOURCE: Carb. issues/ vacum lines/fuel lines

Try here:
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Posted on Sep 23, 2009

rtpflh
  • 546 Answers

SOURCE: I think someone hooked up fuel lines wrong. The

not that familiar w/Yamaha,but disconnected vacuum hoses may connect to fuel petcock at tank.I know Honda uses a system that only allows fuel to flow when vacuum is supplied.

Posted on Sep 26, 2009

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Small diameter line out of fuel tank (has filter in-tank on end) connects to the side of the carburetor that has the fuel pump....that is the cover without the hole in it. Other larger diameter fuel line out of tank connects to the longer nipple on the external purge/primer bulb. The bulb "pulls" fresh fuel from the fuel tank to the carb and then out of the carb to itself, where it then pushes any air/old fuel back into the fuel tank. The remaining larger diameter fuel line in this setup goes from the metering chamber (has cover with writing on it and a vent-hole) side of the carburetor to the smaller nipple on the purge/primer bulb. Again, on the primer bulb, the longer nipple has a line going directly from it to the tank. The shorter nipple on the bub has a line from it going to the metering chamber side of the carb.If the purge/primer bulb is on top of the carb...small line from carb body to small hole in tank with filter. Larger diameter line goes from the bulb on the fuel pump side of the carb to the larger hole in the fuel tank where the line is held in place with a nylon nipple connector that keeps the line from pulling out of the tank

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Fuel dont get in carbruator put gas in the carb thru the choke it starts but dies .i put a new gasline in it and a new carb kit Why dose pressure build in the fuel tank i removed the fuel line and gas...


When you prime/puge your carburetor, make sure fuel (w/ no air) is moving from the fuel tank towards the body of the carb. Also, make sure that there is fuel/air bubbles leaving the primer bulb and going back towards the fuel tank...and that when you push the bulb down and release it, there is no fuel movement in either line. If fuel does move when letting up on the bulb, you either have the fuel lines reversed or, the check valves in the primer base assembly are not functioning. The primer/puge valve's funcion is to draw fresh fuel into the fuel pump side of the carb and to push old fuel/air from the metering chamber side of the carb back to the fuel tank. Here is proper fuel routing:
This is an ongoing issue for users, and rightfully so. Small diameter line out of fuel tank (has filter in-tank on end) connects to the side of the carburetor that has the fuel pump....that is the cover without the hole in it. Other larger diameter fuel line out of tank connects to the longer nipple on the external purge/primer bulb. The bulb "pulls" fresh fuel from the fuel tank to the carb and then out of the carb to itself, where it then pushes any air/old fuel back into the fuel tank. The remaining larger diameter fuel line in this setup goes from the metering chamber (has cover with writing on it and a vent-hole) side of the carburetor to the smaller nipple on the purge/primer bulb. Years ago on 2-stroke trimmers, primers were not even used,...you choked the carb with a slide lever and gravity let fuel enter the carb from above...a few pulls, a "pop"...slide it off of choke and away you went.
If the purge/primer bulb is on top of the carb...small line from carb body to small hole in tank with filter. Larger diameter line goes from the bulb on the fuel pump side of the carb to the larger hole in the fuel tank where the line is held in place with a nylon nipple connector that keeps the line from pulling out of the tank.

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2 Answers

Where do I connect the fuel lines on my ryobi weedeater?


I have Ryobi775r string trimmer with walbro WT526 carb. The fuel lines connect 3 parts eg. gas tank, bulb (mine is a separate bulb not part of carb.) and the carb. The bulb has 2 fittings- a short and a long one. The carb also has 2 fittings- one on top (vertcle) and one on the bottom (L shape). The gas tank has two holes in the bottom one for over flow line and the other for fuel inlet to the carb. This has a filter in the gas tank. Now the connections- connect the long fitting on bulb to the tank. this is the overflow. Connect the short fittin on bulb to the carb top (verticle) fitting. Connect the fuel line (with filter - it is in the tank) streight to the L fitting on the bottom of the carb. Make sure the fuel lines are of right diameter. Too big-and you will have leaks. You are done connecting the fuel lines. just for info. the bulb is there just to pull a vavcume in carb so that the fuel is sucked into the carb and is present there when you start the engine. Hope it helps. Good luck.

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