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 Reproduction Harley Model 125 / Model 165 / Hummer Gas Tank with Key Switch
3 reviews $239.99

Lowbrow Customs WX Split Gas Tanks - Bolt-On for 1936 - 1984 Big Twin Harley-Davidsons - 2.25 gallon
74 reviews $384.99

V-Twin Manufacturing Frisco Mount Sportster Bobber Gas Tank - 2.5 gallon
5 reviews $149.99

Cycle Standard Harley-Davidson Ironhead Sportster 1958 - 1978 Replica Stock Style Gas Tank - 2.4 gallon
50 reviews $149.99

Cycle Standard Stock Style Harley King Sportster Gas Tank 1995 - 2003 - Left Side Petcock - 2.9 gallon
10 reviews $149.99

Cycle Standard Blackbird Legacy Gas Tank for 1982 - 2003 Harley-Davidson Sportsters - 3.5 gallon
13 reviews $237.99 $279.99

Cycle Standard Bayonet / Cam Harley Style Vented 2" Gas Cap - Chrome
45 reviews $13.19

Lowbrow Customs Gas Tank Adapter Brackets 1982-2003 Harley Sportsters XL
47 reviews $44.99

Cycle Standard Stock Style Harley Sportster Gas Tank 1986 - 2003 - Left Side Petcock - 2.2 gallon
68 reviews $164.99

Cycle Standard Blackbird Legacy Gas Tank for 2007-2022 EFI Harley-Davidson Sportsters - 3.5 gallon
17 reviews $299.99

Cycle Standard Stock Style Gas Tank 2007-2022 Harley-Davidson Sportster EFI - 2.2 gallon
$196.08 $208.55

Cycle Standard Stock Style Harley-Davidson Sportster Gas Tank 2004-2006 - 2.2 gallon
$202.02 $215.50

Colony #2107-16 Gas Tank Mounting Kit - 1996-2003 Harley-Davidson Sportster - Chrome Plated
6 reviews $38.58 $40.61

Cycle Standard EFI To 22mm Gas Tank Petcock Adapter - 2007-Up Harley-Davidson XL
1 review $71.49

Cycle Standard Pop-Up Gas Cap - Black - Vented - for Harley 1996 & later
15 reviews $43.99

Cycle Standard Frisco Mount 2007-2022 EFI Sportster Gas Tank - Standard Width - 2.5 gallon
7 reviews $199.99

Lowbrow Customs Banded Screw-In Gas Cap for Harley-Davidson 1996 & later - Brass
23 reviews $59.99

Cycle Standard 22mm Petcock Harley-Davidson Style - Black - Left Hand Outlet
18 reviews $18.97 $25.29

Cycle Standard Stock Style Harley King Sportster Gas Tank 1986 - 1994 - Right Side Petcock - 2.9 gallon
5 reviews $159.99

Cycle Standard Screw-In Harley Stock Style Vented Gas Cap - 1996 & up - Black
56 reviews $14.95 $17.59

Lowbrow Customs Dished Screw-In Gas Cap for Harley-Davidson 1996 & later - Brass
15 reviews $59.99

Cycle Standard 22mm Petcock Round Body Chrome Harley-Davidson Style - Left Side Position
15 reviews $36.29 $48.39

Cycle Standard 22mm Petcock Harley-Davidson Style - Black - Straight Outlet
24 reviews $23.09

Cycle Standard 22mm Petcock Round Body Solid Brass Harley-Davidson Style - Left Side Position
14 reviews $41.13 $48.39

Cycle Standard Screw-In Harley Stock Style Vented Gas Cap - 1996 & up - Chrome
34 reviews $17.59

Cycle Standard Bayonet / Cam Harley Style Vented 2" Gas Cap - Black
29 reviews $12.09

Lowbrow Customs Finned Thread-In Gas Cap for Harley-Davidson 1996 & later - Polished
26 reviews $38.49

Lowbrow Customs Competition Screw-In Gas Cap for Harley-Davidson 1996 & later - Polished
28 reviews $38.49

Cycle Standard Pop-Up Gas Cap Large Diameter - Chrome - Vented - for Harley 1996 & later
5 reviews $20.60 $39.59

Drag Specialties Diamond Pattern Gas Tank 2004 - 2006 Sportster XL Models
4 reviews $265.95

Drag Specialties Fat Bob Style Gas Tanks - 1948-1984 Harley-Davidson FX/FL - 3.5 Gallon
1 review $260.95

Drag Specialties Fat Bob Style Gas Tanks - 1984-99 Harley-Davidson FXST/FLST 1985-86 FX/FXWG - 5 Gallon
$259.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Raw Brass - Inward
$129.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Black - Inward
$129.95

Lowbrow Customs Domed Screw-In Gas Cap for Harley-Davidson 1996 & later - Aluminum
9 reviews $34.99

Cycle Standard Pop-Up Gas Cap Large Diameter - Black - Vented - 1996 - Up Harley-Davidson
12 reviews $26.92 $39.59

Cycle Standard 22mm Petcock Harley-Davidson Style - Chrome - Left Hand Outlet
27 reviews $18.97 $25.29

Cycle Standard 22mm Petcock Harley-Davidson Style - Chrome - Straight Outlet
16 reviews $21.50 $25.29

Cycle Standard 22mm Petcock Harley-Davidson Style - Chrome - Right Hand Outlet
16 reviews $18.97 $25.29

Cycle Standard Domed Slim Chrome Screw-In Harley Style Gas Cap 1996 & up
15 reviews $16.82 $19.79

Lowbrow Customs Banded Screw-In Gas Cap for Harley-Davidson 1982-1995 / Modern Triumph Bonneville T100 / T120, Scrambler, Thruxton - Brass
5 reviews $59.99

Colony #3382-14 Gas Tank Mount Kit 1958-85 Harley-DavidsonSportster XL
1 review $35.53 $37.40

Lowbrow Customs Banded Screw-In Gas Cap for Harley-Davidson 1996 & later - Aluminum
9 reviews $34.99

Bates 1/4" NPT Petcock Conversion Kit 1940-65 H-D Big Twins and 45”/750 cc Sidevalves - CAD Plated
1 review $56.19

Pingel 22MM Power-Flo Petcock - Round Finned Body - Chrome - Inward
$152.95

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

Pingel 22MM Power-Flo Petcock - Hex Finned Body - Chrome - Inward
$152.95

Lowbrow Customs Finned Screw-In Gas Cap for Harley-Davidson 1996 & later - Black
9 reviews $21.28 $38.49

Cycle Standard Domed Slim Black Screw-In Harley Style Gas Cap 1996 & up
43 reviews $16.82 $19.79

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

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Raw Brass - Forward
1 review $129.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Raw Brass - Downward
$129.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Chrome - Downward
$129.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Black - Forward
$129.95

Golan Products Inc. 22MM Click-Slick Petcock - Round Body - Black - Downward
$129.95

Lowbrow Customs Domed Screw-In Gas Cap for Harley-Davidson 1982-1995 / Modern Triumph Bonneville T100 / T120, Scrambler, Thruxton - Brass
8 reviews $59.99

Lowbrow Customs Competition Screw-In Gas Cap for Harley-Davidson 1996 & later - Black
29 reviews $28.87 $38.49

Cycle Standard Bayonet / Cam Harley Style Non-Vented 2" Gas Cap - Chrome
$8.99

Cycle Standard 22mm Petcock Harley-Davidson Style - Chrome - Dixie - Straight Outlet
$9.72 $21.99

Prism Supply Co. 22mm Polished Brass Petcock
2 reviews $104.99

Cycle Standard Rubber Knee Pads for Blackbird Legacy and Blackbird Legacy Slimline Gas Tanks
8 reviews $15.21 $38.99

Drag Specialties Vented Screw-In Gas Cap - Chrome - 1982-1996 Harley-Davidson
1 review $17.95

Cycle Standard Pop-Up Gas Cap Large Diameter - Black - Dummy - 1996 - Up Harley-Davidson
1 review $28.70

V-Twin Manufacturing Large Diameter Chrome Bayonet Gas Cap 1952-1970 Harley K Model Ironhead Sportster XL OEM #61103-52
11 reviews $19.95

Lowbrow Customs Ignition Switch Kit for 1948-59 Harley model 125 / 165 Hummer Gas Tanks
1 review $33.99 $39.99

Cycle Standard Pop-Up Gas Cap - Black - Non-Vented - for Harley 1996 & later
2 reviews $16.30 $41.79

Cycle Standard 22mm Petcock Harley-Davidson Style - Black - Right Hand Outlet
13 reviews $20.23 $25.29

Lowbrow Customs Domed Screw-In Gas Cap for Harley-Davidson 1996 & later - Brass
17 reviews $59.99

Colony #2436-10 Gas Tank Mounting Kit Chrome Pike Nut Harley Dyna 91-up
1 review $25.87 $27.23

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

Cycle Standard Bayonet / Cam Harley Style Vented 2.5" Gas Cap - Gloss Black
5 reviews $21.77

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