2005 Honda rancher 350 es new carb new petcock. It leaks anyway to fix the leak on the plastic fuel tank?

2005 Honda rancher 350 es new carb new petcock. It leaks anyway to fix the leak on the plastic fuel tank?

Probably a new fuel tank.

Replace it.

Wrap the petcock with teflon tape before you put it in. Wrap it in the direction of the threads.

My Honda TRX250R quad has o-ring seals between the petcock and tank that need to be replaced every few years.

If there's a crack in the tank, you may be able to buy a new one on Amazon.com.