the difference is, your stock petcock is vacuum operated, and the one on your new tank is not. You can switch the tanks, just make sure to plug the 45° spigot/tube on your carb body. Also, check, if you have a tank screen inside the new tank.

hey all i have what might seem a dumb question but i just took off the fuel tank on my cx500 and there is obiosly the fuel line on the petcock then there are two other lines what are they and will it run ok with out them hooked up as my new tank has only a single line petcock
thanks
11setth
nolavox..... I think he wants to put another tank with a standart petcock on his bike.try this one
or thread"]one
His Petcock has a Vacum line... hook it up the larger of the two that is coming from the right carb intake (vac) the other is the vent line...
The only "stupid" questions are the ones not asked... There is a search function here, I did it myself... but that's no fun![]()
Well afgter four trys... screw this! you will either have to search for "petcock" or wait for another forum member... sorry![]()