1987 Yamaha FZR 1000 "petcock" Questions

Fuel leaking from petcock bolts I have installed the petcock on the tank with a new o ring and regular bolts. The area is clean and the threads in the tank are solid but fuel keep leaking from what ...

...the engin over for around 30 to 40 seconds. Might have a restriction in the fuel filter, fuel petcock could have a restriction in it. Remove fuel line from petcock to fuel filter, move fuel

...replacement is the answer. I'm not sure about yamaha but suzuki has a vacuum connection on the fuel petcock that turns off the fuel flow if there's no vacuum from a running engine. check that all ...

...the battery still works i dont know what else to check check the vaccum line that goes to the fuel petcock, this prevrnts fuel from flowing if the motor is not running please rate Take out one of ...

3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc. 4. Fuel supply valve/petcock turned off. 5. Fouled spark plugs. 6. Engine flooded as a result of overuse of the choke. 7.

...over a year, the idle jets are for sure plugged, and the others might be plugged partially too. The petcock may be clogged from bad gas/varnish, or rust. I would be cleaning those carbs if I was you. ...

...stopping and it does this repeatedly, It sounds like a fuel problem. Most likely it's either the petcock or the fuel tank vent system. First, If your bike is made after 1996, it probably has the ...

...have a full tank of fuel and be "out of gas" in the carb. The culprit could be the vacuum operated petcock. The petcock has a diaphragm in it that is opened by engine vacuum. If that diaphragm is

my 1998 Dyna has a small leak or drip coming from petcock my 1998 Dyna has a small leak or drip coming from a small nipple that sticks down from the petcock. Is it time for a enw petcock or will some ...

...fuel wont go through the lines to get it started You're bike may be equipped with a vacuum operated petcock. See if the fuel valve has a "prime" position on it. If so, put it in this position. If you ...