Questions & Answers for: petcock diaphragm

...diaphragm that opens and closes the petcock. This is one of the problems with the vacuum operated device. The other problem is that sometimes they don't open and you're left stranded with a full tank ...

...diaphragm membrane and a pin hole on the main body of the petcock. one other thing make sure the surfaces do not have anything on there or your diaphragm will not seal properly any pieces of of the ...

petcock has a diaphragm in it that is opened by engine vacuum. If that diaphragm is not functioning as it should, no gasoline gets to the carb. To test the petcock, reach around behind it and feel for

...diaphragm in the complete petcock assembly. The only way to get a diaphragm separately is in the K&L petcock rebuild kit. Unless your leak is dirty carb/bad needle related and not petcock

...petcock. There's diaphragm, a needle and a small spring behind the plate. Hold the diaphragm up to the light and gently stretch it. Look for holes. You can get a replacement diaphragm from your local ...

diaphragm in the backside of the petcock. Harley went to a vacuum operated petcock in 1996 and they've been a pain ever since. The diaphragm gets a small hole in it and leaks gasoline or quits opening

diaphragm. Drain the tank, remove the petcock. Take the four small bolts out of the square backside of the petcock. There is a spring, a needle and a diaphragm under the plate. Take it apart slowly so

...diaphragm. Before you put the petcock back together, blow all the fuel passages out with compressed air. Reassemble and reinstall the petcock. Another thing could be a bad vent in the fuel cap. The ...

...diaphragm in the petcock, a pressure is applied instead. When this happens, it dislodges the diaphragm from it's location and then the vacuum line becomes a air leak into the manifold. Drain the fuel ...

...diaphragm in the petcock. To replace the diaphragm, drain the tank and remove the petcock. Take the four small screws out of the plate on the back of the petcock and carefully separate it. There is a ...