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.

Harley-Davidson Gas Tanks

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Cycle Standard Stock Style Harley Sportster Gas Tank 1986 - 2003 - Left Side Petcock - 2.2 gallon
72 reviews $212.48

Cycle Standard Bayonet / Cam Harley Style Vented 2" Gas Cap - Chrome
53 reviews $20.42

Cycle Standard Harley-Davidson Ironhead Sportster Gas Tank 1958 - 1978 Replica Stock Style - 2.4 gallon
56 reviews $202.49

Cycle Standard Frisco Mount 2007-2022 EFI Sportster Gas Tank - Standard Width - 2.5 gallon
13 reviews $234.29

Cycle Standard Rubber-Mount Quickbob Gas Tank 1986-2003 Harley-Davidson Sportster
$395.64

Lowbrow Customs Gas Tank Adapter Brackets 1982-2003 Harley Sportsters XL
54 reviews $49.09

Cycle Standard Harley King Sportster Gas Tank 2.9 Gallon Stock Style for 1995-2003 with Left Side Petcock
16 reviews $194.01

Cycle Standard Blackbird Legacy 3.5-Gallon Gas Tank for 1982-2003 Harley-Davidson Sportsters
16 reviews $335.68

Cycle Standard Stock Style Harley-Davidson Sportster Gas Tank 2004-2006 - 2.2 gallon
6 reviews $238.85

Cycle Standard Blackbird Legacy Gas Tank for 2007-2022 EFI Harley-Davidson Sportsters - 3.5 gallon
20 reviews $267.07

Cycle Standard EFI To 22mm Gas Tank Petcock Adapter - 2007-Up Harley-Davidson XL
11 reviews $104.51

Cycle Standard Screw-In Harley Stock Style Vented Gas Cap - 1996 & up - Chrome
38 reviews $26.62

Lowbrow Customs Reproduction Harley Model 125 / Model 165 / Hummer Gas Tank - With Key Switch
8 reviews $294.28

Cycle Standard Fat Bob Style Gas Tanks - 1948-1984 Harley-Davidson FX/FL - 3.5 Gallon
4 reviews $276.46

Cycle Standard 22mm Petcock Harley-Davidson Style - Chrome - Right Hand Outlet
17 reviews $36.41

Pingel 22MM Power-Flo Petcock - Hex Body - Chrome - Forward
$161.95

Cycle Standard Stock Style Harley King Sportster Gas Tank 1986 - 1994 - Right Side Petcock - 2.9 gallon
5 reviews $204.40

Lowbrow Customs Frisco Mount EFI Sportster Gas Tank - Standard Width - 2.5 gallon
3 reviews $192.40 $233.60

Cycle Standard 22mm Petcock Harley-Davidson Style - Black - Straight Outlet
32 reviews $33.76

Cycle Standard Screw-In Harley Stock Style Vented Gas Cap - 1996 & up - Black
63 reviews $20.61

Cycle Standard 22mm Petcock Harley-Davidson Style - Black - Right Hand Outlet
13 reviews $26.73 $36.84

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Chrome - Straight
1 review $190.95

Cycle Standard 22mm Petcock Harley-Davidson Style - Black - Left Hand Outlet
24 reviews $36.69

Drag Specialties Fat Bob Flatside Style Gas Tanks - 1984-1999 Harley-Davidson FXST/FLST 1985-1986 FX/FXWG - 3.5 Gallon
$348.09

Lowbrow Customs Competition Screw-In Gas Cap for Harley-Davidson 1996 & later - Polished
39 reviews $42.30 $51.64

Drag Specialties Fat Bob Style Gas Tanks - 1984-1999 Harley-Davidson FXST/FLST 1985-1986 FX/FXWG - 5 Gallon
$333.67

Cycle Standard 22mm Petcock Harley-Davidson Style - Chrome - Left Hand Outlet
30 reviews $36.46

Motone Billet Bayonet / Cam Harley Style Vented Gas Cap - Black
$34.99

Lowbrow Customs Finned Thread-In Gas Cap for Harley-Davidson 1996 & later - Polished
35 reviews $51.28

Cycle Standard 22mm Petcock Round Body Chrome Harley-Davidson Style - Left Side Position
18 reviews $70.23

Cycle Standard Domed Slim Chrome Screw-In Harley Style Gas Cap 1996 & up
16 reviews $27.50

Cycle Standard Screw-In Harley Stock Style Vented Gas Cap - 1982-1995 - Chrome
$26.75

Lowbrow Customs Mounting Kit for WX Gas Tanks - 1985-1999 Harley-Davidson Softails
4 reviews $65.51

Cycle Standard Bayonet / Cam Harley Style Non-Vented 2" Gas Cap - Chrome
$13.57

Cycle Standard Stock Style Gas Tank for 2007-2022 Harley-Davidson Sportster EFI - 2.2 gallon
2 reviews $250.20

Lowbrow Customs Domed Screw-In Gas Cap for Harley-Davidson 1996 & later - Brass
20 reviews $83.23

Colony #2107-16 Gas Tank Mounting Kit - 1996-2003 Harley-Davidson Sportster - Chrome Plated
6 reviews $40.61

Cycle Standard 22mm Petcock Round Body Solid Brass Harley-Davidson Style - Left Side Position
14 reviews $70.22

Cycle Standard Domed Slim Black Screw-In Harley Style Gas Cap 1996 & up
47 reviews $25.45

Gasbox 1986 - 2003 Sportster Frisco Style Gas Tank Lift Kit
20 reviews $49.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Black - Downward
2 reviews $190.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Raw Brass - Straight
1 review $190.95

Pingel 22MM Power-Flo Petcock - Hex Body - Black - Inward
$184.95

Cycle Standard 22mm Petcock Harley-Davidson Style - Chrome - Straight Outlet
18 reviews $36.35

Cycle Standard Bayonet / Cam Harley Style Vented 2" Gas Cap - Black
33 reviews $18.04

Motone Screw-In Billet Adapter for 2.5" Monza Gas Cap for 1996 & later Harley-Davidson
3 reviews $56.08 $69.64

Lowbrow Customs Domed Screw-In Gas Cap for Harley-Davidson 1996 & Later - Antique Brass
3 reviews $83.23

Lowbrow Customs Banded Screw-In Gas Cap for Harley-Davidson 1996 & later - Brass
38 reviews $83.23

Lowbrow Customs Dished Screw-In Gas Cap for Harley-Davidson 1996 & later - Brass
16 reviews $83.23

Pingel 22MM Power-Flo Petcock - Round Body - Chrome - Backward
2 reviews $161.95

Solid Custom Rippled Screw-In Billet Gas Cap for 1996 & later Harley-Davidson - Vented - Black
1 review $79.99 $99.99

Bates 1/4" NPT Petcock Conversion Kit 1940-65 H-D Big Twins and 45”/750 cc Sidevalves - CAD Plated
4 reviews $77.49

Lowbrow Customs Domed Screw-In Gas Cap for Harley-Davidson 1996 & later - Aluminum
12 reviews $48.55

Cycle Standard Bayonet / Cam Harley Style Vented 2.5" Gas Cap - Chrome
13 reviews $33.95

Prism Supply Co. 3/4"-18 Petcock Fits Early Style Harley-Davidson Tanks - Stainless Steel
$134.99

Prism Supply Co. 22mm Petcock - Stainless Steel
$129.99

Cycle Standard Bayonet / Cam Harley Style Vented 2.5" Gas Cap - Gloss Black
7 reviews $30.64

Lowbrow Customs Ignition Switch Kit for 1948-59 Harley model 125 / 165 Hummer Gas Tanks
2 reviews $58.89

Prism Supply Co. 22mm Petcock - Brass
4 reviews $104.99

Lowbrow Customs Banded Screw-In Gas Cap for Harley-Davidson 1996 & later - Aluminum
10 reviews $48.55

Lowbrow Customs Dished Screw-In Gas Cap for Harley-Davidson 1996 & later - Aluminum
4 reviews $48.55

Cycle Standard Pop-Up Gas Cap Large Diameter - Black - Dummy - 1996 - Up Harley-Davidson
1 review $42.35

Lowbrow Customs Banded Screw-In Gas Cap for Harley-Davidson 1982-1995 / Modern Triumph Bonneville T100 / T120, Scrambler, Thruxton - Brass
6 reviews $83.23

Motone Screw-In Billet Gas Cap for 1996 & later Harley-Davidson - Vented - Black
$82.47 $102.31

Colony #2523-5 Gas Tank Allen Mounting Kit 1988-1994 Harley-Davidson FXR - Chrome Plated
$13.22

Cycle Standard Screw-In Harley Stock Style Vented Gas Cap - 1982-1995 - Black
$21.37

Drag Specialties Vented Screw-In Gas Cap - Chrome - 1982-1996 Harley-Davidson
6 reviews $29.82

Colony #9891-18 Gas Tank Mounting Kit 1937-1975 Harley-Davidson Big Twin 1972-1972 FX - Chrome Plated
3 reviews $18.88

Cycle Standard Screw-In Harley Stock Style Non-Vented Gas Cap - Left Side - 1982-1995 - Chrome
$26.75

Cycle Standard Screw-In Harley Stock Style Non-Vented Gas Cap - Left Side - 1996 & up - Black
$21.37

Colony #3719-4 Fuel Tank Rubber Grommet Kit 2018-Up Harley-Davidson Softails
$20.00

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