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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Lowbrow Customs WX Split Gas Tanks - Bolt-On for 1936 - 1984 Big Twin Harley-Davidsons - 2.25 gallon
82 reviews $399.99

Cycle Standard Harley-Davidson Ironhead Sportster Gas Tank 1958 - 1978 Replica Stock Style - 2.4 gallon
55 reviews $196.59

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

Cycle Standard Bayonet / Cam Harley Style Vented 2" Gas Cap - Chrome
52 reviews $18.56

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

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

Lowbrow Customs Gas Tank Adapter Brackets 1982-2003 Harley Sportsters XL
51 reviews $46.75

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

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

Cycle Standard EFI To 22mm Gas Tank Petcock Adapter - 2007-Up Harley-Davidson XL
7 reviews $99.53

Lowbrow Customs Mounting Kit for WX Gas Tanks - 1985-1999 Harley-Davidson Softails
$62.39

Cycle Standard Harley King Sportster Gas Tank 2.9 Gallon Stock Style for 1995-2003 with Left Side Petcock
13 reviews $188.36

Cycle Standard Screw-In Harley Stock Style Vented Gas Cap - 1996 & up - Black
62 reviews $18.74

Cycle Standard Screw-In Harley Stock Style Vented Gas Cap - 1996 & up - Chrome
37 reviews $24.20

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

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Raw Brass - Forward
1 review $130.95

Cycle Standard 22mm Petcock Round Body Solid Brass Harley-Davidson Style - Left Side Position
14 reviews $66.88

Lowbrow Customs Competition Screw-In Gas Cap for Harley-Davidson 1996 & later - Polished
37 reviews $40.29 $49.18

Lowbrow Customs Dished Screw-In Gas Cap for Harley-Davidson 1996 & later - Brass
16 reviews $79.27

Cycle Standard 22mm Petcock Harley-Davidson Style - Black - Right Hand Outlet
13 reviews $25.46 $35.09

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

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

Cycle Standard 22mm Petcock Harley-Davidson Style - Black - Left Hand Outlet
21 reviews $34.94

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

Drag Specialties Gas Tank with Aero-Style Gas Cap - 1995-03 Harley-Davidson Sportster - 3.3 Gallon
$269.81

Cycle Standard 22mm Petcock Round Body Chrome Harley-Davidson Style - Left Side Position
17 reviews $66.89

Cycle Standard Bayonet / Cam Harley Style Vented 2.5" Gas Cap - Chrome
12 reviews $32.33

Cycle Standard 22mm Petcock Harley-Davidson Style - Chrome - Left Hand Outlet
29 reviews $34.72

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Black - Downward
$130.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Raw Brass - Downward
$130.95

Motone Screw-In Billet Gas Cap for 1996 & later Harley-Davidson - Vented - Satin Brass
$82.47 $102.22

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

Lowbrow Customs Ignition Switch Kit for 1948-59 Harley model 125 / 165 Hummer Gas Tanks
2 reviews $56.09

Lowbrow Customs Finned Thread-In Gas Cap for Harley-Davidson 1996 & later - Polished
30 reviews $48.84

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

Lowbrow Customs Banded Screw-In Gas Cap for Harley-Davidson 1996 & later - Brass
35 reviews $79.27

Cycle Standard 22mm Petcock Harley-Davidson Style - Chrome - Straight Outlet
17 reviews $34.62

Cycle Standard Stock Style Harley King Sportster Gas Tank 1986 - 1994 - Right Side Petcock - 2.9 gallon
5 reviews $198.45

Cycle Standard 22mm Petcock Harley-Davidson Style - Chrome - Right Hand Outlet
17 reviews $34.68

Lowbrow Customs Domed Screw-In Gas Cap for Harley-Davidson 1996 & later - Aluminum
11 reviews $46.24

Lowbrow Customs Frisco Mount EFI Sportster Gas Tank - Standard Width - 2.5 gallon
$186.80 $226.80

Cycle Standard Domed Slim Chrome Screw-In Harley Style Gas Cap 1996 & up
15 reviews $25.00

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

Cycle Standard Bayonet / Cam Harley Style Vented 2" Gas Cap - Black
29 reviews $16.40

Cycle Standard 22mm Petcock Harley-Davidson Style - Black - Straight Outlet
27 reviews $32.15

Pingel 22MM Power-Flo Petcock - Round Body - Chrome - Forward
1 review $152.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Black - Straight
$130.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Black - Forward
$130.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Black - Backward
$130.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Raw Brass - Straight
$130.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Raw Brass - Backward
2 reviews $130.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Chrome - Forward
$130.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Chrome - Downward
$130.95

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

Colony #3718-4 Fuel Tank Rubber Grommet Kit 2000-2017 Harley-Davidson Softails
$20.90

Lowbrow Customs Banded Screw-In Gas Cap for Harley-Davidson 1982-1995 / Modern Triumph Bonneville T100 / T120, Scrambler, Thruxton - Brass
5 reviews $79.27

Lowbrow Customs Domed Screw-In Gas Cap for Harley-Davidson 1982-1995 / Modern Triumph Bonneville T100 / T120, Scrambler, Thruxton - Brass
9 reviews $79.27

Colony #3587-1 Gas Tank Buffer 1936-1947 Harley-Davidson Knucklehead 1937-48 U Models
$19.36

Colony #3382-14 Gas Tank Mount Kit 1958-1985 Harley-Davidson Sportster XL - Chrome Plated
1 review $37.40

Colony #7807-3 Gas Tank Fitting Kit 1950-1965 Harley-Davidson Big Twins - Chrome Plated
1 review $23.91

Cycle Standard Gas Tank Mounting Kit 1958-1985 Harley-Davidson Sportster XL
$19.54

Cycle Standard Domed Slim Black Screw-In Harley Style Gas Cap 1996 & up
43 reviews $23.14

Cycle Standard Bayonet / Cam Harley Style Non-Vented 2" Gas Cap - Chrome
$12.34

Gasbox Stainless Steel Hardware Mounting Kit for 1958-1978 Harley-Davidson Sportster Style Gas Tanks
$19.95

Colony #3038-18 Gas Tank Mounting Kit 1937-1975 Harley-Davidson Big Twins 1971-1972 FX - Parkerized
1 review $17.42

Colony #9893-18 Gas Tank Mounting Kit 1937-1975 Harley-Davidson Big Twin 1972-1972 FX - Parkerized
3 reviews $17.42

Lowbrow Customs Banded Screw-In Gas Cap for Harley-Davidson 1996 & later - Aluminum
10 reviews $46.24

Colony #3384-4 Gas Tank Spacers 1952-1981 Harley-Davidson K/XL- 4 pack - CAD Plated
1 review $10.89

Lowbrow Customs Competition Screw-In Gas Cap for Harley-Davidson 1996 & later - Black
29 reviews $40.16 $49.05

Colony #3588-1 Gas Tank Buffer 1909-1925 Harley-Davidson All 1926-1929 F/J 1930-1936 V/VL
$9.68

Cycle Standard Screw-in Style Gas Cap Gasket replaces Harley-Davidson OEM #61109-85
22 reviews $3.41

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