How far can a Harley go on a tank of gas?

Harley-Davidson motorcycles typically get 40-50 miles per gallon, which is a good reference point for how far you can ride based on the capacity of your gas tank. Sportsters tend to be smaller and get more miles per gallon, while large Touring bikes or Trikes are heavier and are on the lower range of miles per gallon.

What are the parts of fuel system?

Many new bikes are fuel injected, and have a computer to control the amount of gas fed to the engine. There is a fuel pump that provides fuel to the throttle body, which feeds the gasoline to the engine. Older bikes are carbureted, which is a simple system. Gas tends to be gravity fed from a gas tank to the carburetor and the amount of gas delivered to the engine depends on the size of the carburetor jets that are installed. The carburetor is tuned by changing the jets, which have different size orifices, which meters the amount of gasoline delivered to the engine.

Why is my motorcycle leaking gas?

If your motorcycle is leaking gas take a close look to see where the leak is originating. Common problems would include a leaky fuel valve (petcock), damaged fuel line, or if the fuel is coming from the carburetor, a stuck float. A leaky fuel valve or damaged fuel line can be replaced, while a stuck carburetor float can typically be fixed. The carburetor may just need some taps on the float bowl with the handle of a screwdriver to free the stuck float. If that doesn't work, make sure the fuel valve is off, remove the float bowl and check for grit or any debris that could be causing the float needle to not completely seat, which would allow gas to continue flowing into the float bowl even when it is full.

Gas Tanks

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How-to Select a Killer Custom Motorcycle Gas Tank & Its Accessories Choosing a Gas Tank for Your Motorcycle If you are in search of a killer custom motorcycle gas tank, you are in the right place. Lowbrow Customs has a great selection of some ...

Choosing a Gas Tank for Your Motorcycle

If you are in search of a killer custom motorcycle gas tank, you are in the right place. Lowbrow Customs has a great selection of some of the most sought-after custom motorcycle gas tanks available. These are high-quality Lowbrow Customs gas tanks that you see on some of the most popular builds out there.

We have a nice selection of Sportster® gas tanks that really can transform the look of your build. Classic style Sportster® gas tanks like the original P-Nut Deep Tunnel or Mid-Tunnel gas tanks which have that smooth round look so many builders prefer. Maybe the Narrow Sporty Frisco Gas Tank is more your speed with its straight lines and front forward teardrop style.

If you need just a straight-forward replacement Sportster® motorcycle tank, we have that too. Lowbrow Customs also carries custom motorcycle tanks for Big Twins, vintage motorcycle gas tanks, or chopper gas tanks like the classic coffin tank. All of our gas tanks are made from high quality steel and are professionally welded. The custom motorcycle gas tanks come pre-sanded ready for paint.

We always recommend that you pre-fit any aftermarket motorcycle gas tank before painting. Be sure to check for clearance or mounting issues as different combinations of triple trees, risers, and handlebars may cause clearance issues when turning.

Custom Motorcycle Gas Tank Mounting Hardware and Accessories

Now that you have your gas tank picked out, be sure to check out our selection of gas tank mounting hardware and accessories. We have some of the coolest gas caps you can find. From the classic spinner cap with the 3-prong design to standard replacement gas caps and pop-up gas caps.

We carry a full selection of mounting hardware from Colony™ to help get the tank mounted properly. We also carry a nice assortment of motorcycle fuel petcocks, weld in tank bungs, and the best fuel reserve bottles in the market. If you are looking for a custom motorcycle gas tank, Lowbrow Customs is the place to be.

Custom motorcycle gas tanks for sale combined with an assortment of fuel petcocks, caps, mounting hardware and accessories. All in one easy to use website ready to ship to your door. Last but not least, if you are totally new to customizing your gas tank, watch our video how to mount a gas tank for detailed steps that you can follow.

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Gas Tanks FAQ

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