installing an Interstate tank on a standard

The Interstate tank holds 6.9 gallons versus the standard's 5.3.  The 1.1 gallon reserve is the same.  The cost of the Interstate tank (about $975 in black) is roughly the same as a standard tank.  This makes an insurance replacement a no-brainer.  There is simply no downside to the swap.

As can be seen from the photos below, the overall shape of the tanks when viewed from the top is nearly the same.  The only real difference in the Interstate tank is that its rear does not taper in quite as much.

[click on any image for a larger view]

The extra 1.6 gallons of fuel is in the additional height of the Interstate tank.  The entire profile is shifted upwards in the Interstate tank.  This results in a sharp dropoff in the rear, as opposed to the gentle transition into the seat provided by the standard.

In my opinion, the Interstate tank is nicer looking.  The stock tank looks a little small on the bike (how can a 5 1/2 gallon tank look small?!).

installation:

The installation is straightforward.  For gas tank removal instructions, click here.

You will need to purchase a fuel sender (about $75) to cover the hole.  The sender can be seen in the large version of the top middle photo.  You will also need two additional flange nuts (10mm wrench size) to mount the sender (two nuts come with the new tank).

One tip from Pantera (VRCC #3189): An older Goldwing sender will work to plug the hole.  Pantera obtained one at a junkyard for $5.

I also removed the emblems.  For instructions on how to do this, click here.

One trick from Lamont: the left side cable clips will strike the tank at full lock.  Solution--just reverse the clips.

Corbin seat notes:

The nose of the Corbin seat will need to be modified, as it will no longer fit due to the higher rise of the rear of the Interstate tank.  I do not know what needs to be done, as I had my seat custom fitted after installation of the Interstate tank.  Call Corbin  -- you may need to send the seat to them for modification.

The 2000-forward model seat is a real tight fit also.  The nose of the seat presses rather forcefully into the tank.  I suggest applying some clear contact paper to the tank where the seat rubs to avoid damaging the paint on the tank.