ninjette.org - View Single Post - Gas spills out of my 0990 Air Filter! !@#$%

headshrink · September 18th, 2010, 05:20 PM

I might have this backward, but for the CA models, I believe it is SLIGHTLY more ideal to vent the middle port on the gas tank (rather than the right one), because IIRC it is a LITTLE higher inside the gas tank. I concur that it is best to put a length of tubing on it, with a generic in-line fuel filter. Without the fuel filter on the new vent tube (which is essentially now an air filter), I personally would never have peace of mind about little junk from the environment getting sucked in. The PCV valve is, IMO not at all necessary, BUT if you choose to use one, make sure it is installed in the correct direction... so air can come into the tank.

In summary:

Left gas tank side port = original overflow tube
Center gas tank side port = length of tubbing, generic in-line fuel filter, optional PCV valve (allowing flow of air into tank)
Right gas tank side port = capped off.

This may not have been necessary to restate, but for myself, these are the little details I go over and over in my mind until I understand what I am doing.

September 18th, 2010, 05:20 PM	#16
headshrink ninjette.org certified postwhore Name: Bob Location: CA Join Date: Dec 2008 Motorcycle(s): '08 Ninja 250r, '14 CBR500r Posts: A lot.	I might have this backward, but for the CA models, I believe it is SLIGHTLY more ideal to vent the middle port on the gas tank (rather than the right one), because IIRC it is a LITTLE higher inside the gas tank. I concur that it is best to put a length of tubing on it, with a generic in-line fuel filter. Without the fuel filter on the new vent tube (which is essentially now an air filter), I personally would never have peace of mind about little junk from the environment getting sucked in. The PCV valve is, IMO not at all necessary, BUT if you choose to use one, make sure it is installed in the correct direction... so air can come into the tank. In summary: Left gas tank side port = original overflow tube Center gas tank side port = length of tubbing, generic in-line fuel filter, optional PCV valve (allowing flow of air into tank) Right gas tank side port = capped off. This may not have been necessary to restate, but for myself, these are the little details I go over and over in my mind until I understand what I am doing.