Question about 2000 Harley Davidson FXSTB Night Train

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Petcock repair IF YOU HAVE A VACUM LINE GOING TO THE PETCOCK, DO YOU HAVE TO ORDER A PETCOCK WITH THE VACUM OR CAN YOU CLOSE THE LINE?

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The vacuum line is there to help the fuel flow to the Carb/injectors.So you need the same type as you are taking off.

Posted on Apr 25, 2013

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Got a 1996 zl600 kawasaki eliminator how do i hook up the fuel lines from the petcock to the carburators


there should be a main fuel line which is the largest size and a vacume line which is smaller in diameter cheers

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I have a vacum line off and a plug missing need to see diogram on CARB AND VACUMS LINES BECUASE NOT GET GAS TO CRAB


If you're not getting fuel to the carb, then the vacuum line you're talking about comes from the backside of your carb and feeds vacuum to both the VOES switch and the vacuum operated petcock. The VOES is either up in the tunnel of the fuel tank or on the choke cable bracket. The nipple for the vacuum line on the petcock is on the backside of the petcock. The nipple for the vacuum line at the carb or intake should be visible is you look at the backside of the carb from the left side of the bike.

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1 Answer

WHERE DOES THE VACUM LINE GO FROM THE PETCOCK?


It goes to a boss on the front top of the 3rd or 4th carb from the left.

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The ac in my 1998 Lincoln Towncar is bolowing very hot air. The evapoarator and lines under the hood are cold and there is condensation present on them. The temperature controls switch seems to be working...


Your lines are cooling but you still have heat coming out. Check you heater lines going to the firewall. On one of them is a valve most likely with a vacum line attached. You should be able to close that valve manually and see if that resolves the issue. If it does you have two options. 1, Replace the valve or trace down the vacum line and see if you can repair it. 2, You can disconnect both heater lines and connect them together basically removing the heater from the equation. Another problem could be the AC coil not working as it should due to a blockage of some type but this is unlikely since you lines are cooling.

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1 Answer

Vacume leak under dash. Sounds like door opening


You got it right, there is a 'door' that opens and closes under the dash to change cooled or heated air flow to the interior vents. A vacuum line either disconnected, or is leaking somewhere, and is most likely responsible for the lack of a/c. You are going have to hunt around to try and find where the leaking/disconnected line is to repair it. It's not going to be a fun job. You can access diagrams and info on your car (for a fee) at alldatadiy. Look under HVAC system to see the info you need. Good luck.

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1 Answer

I need to know where all the hook ups go coming from the shut off valve of the gas tank on my 1985 yamaha maxim x 700


There are two lines coming out of the fuel petcock (shut-off valve). The small diameter one is a vacum line that connects to the top of the rubber intake located between the carb and the engine head. you should notice that all four intakes have a vacum port in this location and they should all be capped excet one - usually #2.

The second line of the fuel petcock is the larger diameter one, and is the fuel line. Make sure you install an in-line filter if it has been lost. The fuel line connects to the carb on a pipe that feeds all four carbs. The pipe is located on the lower portion of the carb, down by the float bowls. There will be a connection port between #2 and #3 (right in the middle of the carb assembly). It will be difficult to see when everything is assembled and even more dificult to reach.

Jul 17, 2009 | 1985 Yamaha XJ 700 X Maxim

1 Answer

1985 Yamaha xj700 Maxim- Carb. fuel lines


yes, the breather line hooks to the petcock on the line facing the back, the fuel line hooks to the larger one. the line from the breather is actually a vacume line that turns on the fuel, without it you will not get fuel out of the petcock unless it is in the prime position.

Jul 04, 2009 | 1985 Yamaha XJ 700 X Maxim

1 Answer

Engine will turn over but will not continue to run


the fuel filter is in the tank on top of petcock that bike has a vacum operated petcock(fuelvalve)if the vacum hose is bad no fuel flow check the back of the fuel valve for a small hose that goes to the manifold make sure it is good put vacum on the hose wile hooked to the fuel valve and make sure that gas runs out of the hose give me a rate please hope this helps

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