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Unknown vent on Airbox......
- xLowEndx
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- Slappa da bass
Once it is in the box it drips out of the bottom of the air filter recepticle. (I'm missing the grommet it sits in) Now just behind the filter on the bottom of the box I have a little tube that seems that it should have a hose coming off of it. Where should this go???
The tube itself is either sealed or at least clogged. Does this make any sense at all???
Any ideas on my situation?????
1980 Kawasaki KZ750-H1 LTD
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- 550A2
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- keep the shiny side up
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When the fuel level in the float bowl reaches a certain limit the floats float up and push a needle up blocking a fuel passage so no more fuel enters the float bowl. If too much fuel does enter the bowl it will flow out of the overflow on the bottom of the carb.
Now you may have a chunk of something preventing your float needle from seating and stopping fuel from entering the float bowl....or your float tang isnt adjusted properly also keeping the needle from seating.
So If fuel is flowing from your tank, your overflow is clogged, and your float needle is not seating the fuel will find another way out...Into your #1 carb because it usually sits lower then all the rest when the bike is on kick stand.
Here is my input on possible causes.
-Petcock on prime when bike isnt running. Or damaged petcock vaccum diaphram causing fuel to flow when it shouldnt.
-Float needle isnt seating (stuck open with crud, or not adjusted properly)
-Overflow is clogged.
I would check those things.
You usually have 2 main vents on the bottom of an airbox, a vent that takes gasses from the crankcase and mixes them in with intake air, You will also have an airbox drain. Just a tube at the bottom of the airbox that runs down behind the swingarm to drain any liquids that get in there.
Good luck
-Luke
82 Honda ATC 200-sold
82 Yamaha Virago 920-sold
82 Yamaha YZ250j-kept
80 Suzuki GS 550-sold
82 Kawasaki KZ550 A2-ride all the time
79 Kawasaki KZ650 C-sold
73 Kawasaki Z1 900E-paid $200, sold $6000
86 Yamaha Radian YX600-new project
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- xLowEndx
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1980 Kawasaki KZ750-H1 LTD
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- xLowEndx
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WHAT IS IT?????
1980 Kawasaki KZ750-H1 LTD
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- 650ed
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1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- xLowEndx
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Is fuel also leaking from the carb overflow tube attached to the bottom of the carb? The float valve shouldn't let fuel overflow, but if it does the overflow tube should route the excess fuel through the overflow hose to the ground. I don't understand why fuel would leak from the back of the carb into the airbox unless the overflow tube is clogged. If it is clogged you probably should pull the bowl and take a look at the overflow tube, float valve, and the rest of the carb (jet, idle circuit, etc.) to see if it's gunked up. Ed
Those tubes I think you're referring to go straight into the bottom of my air box, through a grommet even. I'm not aware of any sort of overflow tube but gas will flow out the tubes into the airbox and then out of the large "vent" from the carb to the air box. I lost nearly 2 gallons in about 5 hours. I not really exaggerating either.
(sorry bout the spelling....)
1980 Kawasaki KZ750-H1 LTD
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- H1Vindicator
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- xLowEndx
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I've heard someone mention something about a "vent" or hose to and from the crank case, any ideas on where this would go???
1980 Kawasaki KZ750-H1 LTD
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- JMKZHI
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- xLowEndx
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The crankcase breather tubing should be routed from the crankcase breather cover to the airbox. There should be a hole where the tubing & grommet fit into the lower/front of the airbox.
And if I don't have this . . . . . :blush:
1980 Kawasaki KZ750-H1 LTD
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