Install a New Gas Tank: More Fuel. More Fun. We’ll Show You How

We learned we could add 50% more fuel capacity to our ride by installing an IMS Products oversized tank.
What’s more fun: Riding your dirt bike or stopping for gas? And in a race, which one is faster? Riding, of course. So you need a bigger dirt bike gas tank.

Our YZ250 – with a stock fuel tank – holds 2.1 gallons of fuel. For motocross tracks, that might be okay; the fuel will likely outlast your personal stamina. But for a trail ride? Or a weekend in the desert? No. Worrying about running dry takes the fun out of a ride.

We learned we could add 50% more fuel capacity to our ride by installing an IMS Products oversized tank. This tank holds 3.2 gallons of fuel – that sounds like 50% more riding to me. These tanks are designed for easy bolt-on installation. They’re also designed to feel – as much as possible – like the stock tank when you’re riding the bike.

Of course, most of these oversized fuel tanks are a bit taller than your stock tank. Some of that extra gallon of gas (which weighs about six pounds) will sit up a bit higher on your bike. Still, do you want to ride more, or refuel? Read on.

IMS Products has been making high-performance parts for motorcycles since 1976, equipping off-road racers with fuel tanks, footpegs and more.

The tank for our YZ250 retails for about $275, and is available in Yamaha Blue, a “Natural” off-white color, and the white we chose. It’s a clean look, and is mildly transparent, giving the rider a visual cue of remaining fuel in the tank. Installation is quick and easy with basic hand tools.

Remove Stock Tank1. Remove Stock Tank
Go for a ride until your tank is empty – not difficult to do, right? You’ll want the stock tank to be as empty as possible for removal. After pulling off the plastic, the seat and fuel cap, we moved over to the fuel line at the petcock. We pulled the fuel line from the carburetor knowing our tank was bone dry. If yours has a splash of fuel inside, be prepared with a receptacle and some clean-up rags.

The petcock and fuel line are connected to the stock tank, and you’ll re-use those parts on the new tank. Mounting brackets on the stock tank secure it to the bike; you’ll remove and re-use those also on the new tank.

Swap Tank Hardware2. Swap Tank Hardware
Before attaching hardware pieces to the new tank, make sure it is completely clean inside. It should come clean from the manufacturer, but why take chances? Anything inside will go right into your bike’s engine, so take a couple minutes and clean it.

Remove the petcock from the stock tank; you get a new gasket with the IMS tank, so don’t worry about the stock gasket. The petcock should be an easy swap, just make sure to use that new gasket. The two mounting brackets are each secured with two bolts, and are specific to left and right sides of the tank; note that when removing these from the stock tank.

Install New Tank3. Install New Tank
The new IMS tank – with existing tank hardware – is about the easiest product installation you’ll encounter. Place the new tank on the frame and secure it to the bike. To test the fit, install the seat and climb aboard, making sure the new tank feels right. Also turn the handlebars and make sure there is no interference.

Before bolting on all the plastic pieces, hook up the fuel line to the carb, then add some fuel to the tank and check for leaks. Check it with the petcock in both the open and closed positions. Assuming it’s all good, you can replace all the plastic and get ready to ride!

To see the this tech tip video on installing a new gas tank, click here.

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