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.

Raw 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

Top view Frisco mount Sportster Gas Tank by Lowbrow Customs — Lowbrow Customs Frisco Mount Sportster Gas Tank - Standard Width - 2.5 gallon
98 reviews $212.50

Lowbrow Customs Frisco Mount Sportster Gas Tank - Narrow - 2.1 gallon
61 reviews $225.85

Cycle Standard Wassell Peanut Mid-Tunnel Gas Tank 2.1 gallon
44 reviews $192.49

Lowbrow Customs Original P-Nut Tank Deep Tunnel Gas Tank 1.8 gallon
60 reviews $199.99

Lowbrow Customs P-Nut Mid-Tunnel Gas Tank 1.8 gallon
47 reviews $199.99

Lowbrow Customs Narrow Sporty Frisco Gas Tank 2.5 gallon
43 reviews $272.89

Lowbrow Customs Frisco Mount Sportster Gas Tank - Super Narrow - 1.6 gallon
34 reviews $225.23

Cycle Standard Sportster Style Frisco Mount Gas Tank - Narrow - 2.1 gallon
11 reviews $201.99

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

Lowbrow Customs King P-Nut Frisco Gas Tank - 2.4 Gallon for 1986-2003 Harley Sportster
44 reviews $244.24

Cycle Standard Axed Chopper Gas Tank 2.2 Gallon
33 reviews $187.37

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

Cycle Standard Dished Wassell Peanut Frisco Mount Shallow-Tunnel Gas Tank - 2.2 gal
20 reviews $213.99

Lowbrow Customs Super Banana Gas Tank - Mid Tunnel - 2.6 Gallon
14 reviews $184.62

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

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

Lowbrow Customs Frisco Mount Sportster Gas Tank - Standard Width - Bayonet Filler - 2.5 gallon
12 reviews $213.53

Prism Supply Co. 1/4 inch NPT 90 Degree Petcock - Stainless Steel
$129.99

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

Lowbrow Customs Banana Gas Tank - Deep Tunnel - 1.8 gallon
12 reviews $185.61

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

Lowbrow Customs Ovate Axed Gas Tank - Super Narrow - 1.6 gallon
10 reviews $201.79

Cycle Standard Mustang Gas Tank - Single Filler - 3.3 Gallon
5 reviews $195.79

Cycle Standard Narrow Wassell Peanut Shallow-Tunnel Gas Tank 1.8 gallon
9 reviews $213.89

Prism Supply Co. 1/4 inch NPT 90 Degree Petcock - Brass
7 reviews $109.99

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

Cycle Standard Mustang Gas Tank - Dual Filler - 3.3 Gallon
2 reviews $168.98

Cycle Standard Narrow Ribbed Mustang Gas Tank 2.25 gallon
29 reviews $198.59

Mooneyes Moon Emergency Tank Fuel Reserve Bottle and Carrier
5 reviews $220.00

Cycle Standard Sportster Style Frisco Mount Gas Tank - Standard Width - 2.5 gallon
2 reviews $202.19

Lowbrow Customs Frisco Mount Sportster Gas Tank - Narrow - Bayonet Filler - 2.1 gallon
6 reviews $212.91

Lowbrow Customs P-Nut Frisco Shallow Tunnel Gas Tank 2 gallon
26 reviews $199.99

Cycle Standard Wassell Peanut Gas Tank - 2 Gallon - Deep Tunnel - Dual 1/4" NPT
8 reviews $192.49

Cycle Standard Laredo Gas Tank - Center Filler
2 reviews $266.31

Cycle Standard Wassell Peanut Frisco Gas Tank 2.1 gallon
$187.69

Lowbrow Customs Harley-Davidson Ironhead Sportster EFI Replica Stock Style Gas Tank - 2.4 gallon
$246.92

Lowbrow Customs Frisco Mount Banana Gas Tank - Bayonet Filler - Shallow Tunnel
2 reviews $178.40

Cycle Standard Narrow Alien Motorcycle Gas Tank - 2.1 gallon
7 reviews $199.99

Cycle Standard Narrow Axed Chopper Motorcycle Gas Tank 1.9 gallon
16 reviews $213.89

Cycle Standard Dished Wassell Peanut Mid-Tunnel Gas Tank - 2.0 gal
14 reviews $213.99

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

Cycle Standard 1/4 inch NPT Lever Petcock - Solid Brass
35 reviews $24.08

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

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 Axed Dual Cap Chopper Gas Tank - 2.2 Gallon
29 reviews $186.43

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

Lowbrow Customs Coffin Chopper Gas Tank - 1.4 Gallon - USA Made
$275.55

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

Lowbrow Customs Brass Gas Filler Cap - Vented
7 reviews $37.74

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

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

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

Lowbrow Customs Lowbrow Fuel Reserve Bottle
141 reviews $22.99

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

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

Lowbrow Customs Aluminum Gas Filler Cap with Weld-In Steel Bung - Vented
8 reviews $43.46

Lowbrow Customs Aluminum Gas Filler Cap - Vented
6 reviews $28.59

British Standard Triumph Gas Tank Mounting Kit 650cc 68-70 500cc 68-74
20 reviews $45.21

Lowbrow Customs Brass Gas / Oil Filler Cap - Unvented
10 reviews $32.02

Pingel Fuel Valve Rebuild Kit - 3 Pack
$103.95

British Standard Sealing Washer for British 1/4 inch BSP Petcocks OEM # 70-7351 - Triumph BSA Norton
17 reviews $7.28

Lowbrow Customs Aluminum Gas / Oil Filler Cap - Unvented
5 reviews $22.87

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

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

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

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

Lowbrow Customs 22mm to 3/8 inch NPT Brass Petcock Adapter Nut
13 reviews $25.10

Lowbrow Customs Aluminum Gas / Oil Filler Cap with Weld-In Steel Bung - Unvented
4 reviews $37.74

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

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