Question about 1981 Yamaha XS 400 Special

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Why does gas leak from my carburator after i start my bike?

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Same cause as above,carbs need cleaning

Posted on May 13, 2014

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My Kawasaki 650 sr 1978, wont start,is gas problem because,I start on the bike and in 5 seconds turn off,carburator are clean gas valve has 2 gas out let looking just 1 out let sended gas to the...


arnt the one the vacuum pipe, between the carburator and the sleeve barrel is n nipel were the vacuum pipe must come one it sucks the and open the valve to let the caburator so it can get petrol just see maby im wrong

Feb 01, 2015 | kawasaki Motorcycles

1 Answer

Why does my carburator leak gas?


You probably need to replace it.... :-(

May 13, 2014 | 1981 Yamaha XS 400

1 Answer

Vacuum leak symptoms


Hi Werner, you can spray starting fluid or Brake Kleen around intake manifold to head and intake manifold to carburator, if RPM's rise you have a leak. Also check for cracks in vacuum line from carburator to fuel valve. Your carburator came from the factory set up on the lean side for maximum 42-50 MPG. The spark plugs will burn a very lite tan to white color usually white. If you are happy with your gas milage and performance and your oil temperature is between 180 and 220 then let sleeping dogs lay/lie. Good luck

Mar 09, 2014 | Harley Davidson Motorcycles

1 Answer

Carburator leaks gas when cycle is started or running from what looks like vent hose?


Sounds to me like your float valve is obstructed by some debris. This is causing it to stay open and leak fuel. Better it leaks to your vent hose than it leaks in your engine and contaminates your oil.

You need a proper carb cleaning. Not some run in the gas tank sh*t. If the tank wasn't full when parked, chances are there is rust in the fuel system to get this out you need to disassemble the carburetor and thoroughly clean it.

Try not to ride the bike til you do this. It's a fire hazard.

Oct 08, 2012 | 2005 Honda VT 600 C Shadow

2 Answers

VTX 1300R 07 ran out of gas and won't start, put fuel in it.


Does your bike have a petcock?

If so you have to prime the fuel bowls with gas by opening the pet **** for a minute until the fuel bowls are full of fuel THEN you set your choke if you have a manual choke THEN start the bike.

Apr 02, 2010 | 2005 Honda VTX 1300 R

3 Answers

07 vtx 1300 leaking gas when bike is started


You need to pull the gas tank off and find out where it is leaking. I would say it is probaby something simple like a loose clamp on a fuel line.

Oct 14, 2009 | 2005 Honda VTX 1300 R

2 Answers

No fuel to carb, I think..


Its seems the the gas is not entering the carburator.
Sometimes if theres water in the gas (since you had filled her up ) one experiences same symptons.
Best would be to clean the carburator but first check the petc o c k if it is allowing full flow of the gas to the carb.

Jul 19, 2009 | 2004 Honda VTX 1300

1 Answer

2008 Honda CRF 150


The carburator seems to be overflowing.
You will have to adjust the float pin and probabely there may be some dirt and thus it doesn't seal off the flow of the gas once the float chamber is full.

May 15, 2009 | 2005 Honda CRF 150 F

1 Answer

1194 VT1100 trouble starting. no problems prior to letting it sit


To begin with ...try to check if there is gas in the float chamber of the carburator/carburators by unscrewing the drain screw at the bottom of the carburator.
Secondly check if there is sparks coming to the spark plugs..off course remember to wipe dry the gas around the bike's engine!
If you have both of this , it should start ... you may hve to use the choke to start.
Let me know if it did start .thks .
Hope this will help!.

Knight.

Feb 03, 2009 | 1994 Honda VT 1100 C Shadow

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