The tank is not supposed to hold pressure. Neither is the primer bulb. The fuel pump on the engine SUCKS gas from the tank. more
See full version: Problem with plastic gas tank
The tank is not supposed to hold pressure. Neither is the primer bulb. The fuel pump on the engine SUCKS gas from the tank. more
Re: Problem with plastic gas tank.
Re: Problem with plastic gas tank.
Re: Problem with plastic gas tank.
Re: Gas Tank Vent; Open or Closed?
Should the vent on the gas tank (6 gal premixed) be closed or open while running the boat? more
If not your engine will probably shut down after a few mins. [links]
More than once I had the expanding gasses "venting" there and either filling up the back of the boat or coating the lake with a nice oily sheen and dripping all over the motor and transom, or both.
Haven't you taken a gas can out of a rowboat or whatever and left it capped tight and had a pool of gasoline in your garage? more
My advice would be to leave it that way or next time you park that thing in the sun the gas tank will swell like a balloon. Something bad's going to happen because those gasses are going to expand no matter what. Either its going to force back into your engine, or find some other place to relieve its own pressure. This can be a mess. [links]