Best Auxiliary Fuel Tank For Motorcycle: Compare 10 Options

#1 · Best Overall

1. Motion Pro 08-0032

• Capacity: 2000 cubic centimeters
• Material: Plastic
• Compatible with Vehicle Type: Motorcycle

Best for: High-capacity tuning sessions.

Why it ranks #1: Its 2,000 cc capacity, four feet of 1/4-inch fuel line and inline valve make it a well-specified option for tuning with the main tank removed.

A 2,000 cc capacity gives the Motion Pro 08-0032 more temporary fuel volume than the smaller workshop bottles in this roundup, supporting longer motorcycle tuning sessions with the gas tank removed. It includes four feet of 1/4-inch fuel line and an inline valve for delivery control.

The four-foot fuel line gives reach between the tank and motorcycle during tuning, while the inline valve lets you control fuel delivery without removing the line. Its 2,000 cc capacity provides a larger temporary supply for extended service work than compact bottles. The included line has a 5/16-inch tank-side barb and 1/4-inch engine-side barb, so those specified connection sizes matter when matching it to a motorcycle setup.

Skip it if you need an engine-side 5/16-inch barb; the listing specifies a separately sold 12-0036 inline valve for that requirement.

Choose the Motion Pro for motorcycle tuning when a larger temporary supply and four-foot line support your workflow. Its specified engine-side barb is 1/4 inch, so connection requirements should guide whether this setup fits your bike.

Listed on Amazon as: Motion Pro 08-0032 Auxiliary Fuel Tank

#2 · Broadest Compatibility

2. MOTO4U 1L Tank

• Capacity: 1 liters
• Material: Plastic
• Compatible with Vehicle Type: Motorcycle

Best for: Mixed-system workshop servicing.

Why it ranks #2: The 1-liter tank is listed for fuel-injected models with external fuel pumps as well as carbureted motorcycles, and includes a hose and cut-off valve.

Compatibility with both standard carburetor motorcycles and fuel-injected models with external fuel pumps sets this 1-liter MOTO4U tank apart for mixed-system workshop use. Its included hose, cut-off valve, and air-outlet lid support temporary fuel delivery during service, with a stated 1/4-inch hose interface.

The 1-liter plastic reservoir can supply fuel while a motorcycle’s main tank is out of the way, and the 1/4-inch hose interface helps connect the included hose to a compatible setup. A cut-off valve lets you manage delivery during testing, while the lid’s air outlet supports use as a temporary tank. The listing also names some late-model motocross bikes for transmission-oil refilling, plus mowers, bikes, and cars as applications.

Skip it if you need a smaller, explicitly vented 500 ml workshop bottle; MOTO4U’s DGY500 lists that capacity and a built-in air vent.

Pick this MOTO4U kit for workshop servicing where carbureted and specified external-pump fuel-injected motorcycles may both need temporary fuel. Check that the 1/4-inch hose interface suits your connection; its 1-liter size favors longer service tasks.

Listed on Amazon as: MOTO4U Auxiliary Gas Fuel Tank Universal Motorcycle Gas Tank Repair Tool Kit Auxiliary Fuel Tank 1L with Fuel Hose,Cut Off Valve and Lid with Air Outlet

#3 · Marked Capacity

3. porotmotor 1L Tank

• Capacity: 1 liters
• Material: High Density Polyethylene (HDPE)

Best for: Measured carburetor tuning.

Why it ranks #3: This 1-liter translucent tank has scale marks, a vented cap and an inline shut-off valve for temporary fuel delivery during carburetor tuning.

A translucent 1-liter tank with scale marks makes fuel level visible during carburetor tuning and synchronization with the motorcycle’s main tank removed. Its vented cap supports gravity-fed flow, and an inline shut-off valve lets you start or stop delivery as service work requires.

The 1-liter capacity provides more temporary fuel than a small workshop bottle, while the translucent body and scale marks make the remaining supply easy to monitor during adjustments. A vented cap supports steady gravity-fed delivery, and the inline valve gives direct control when starting, stopping, or pausing a test. These features suit carburetor tuning, synchronization, and maintenance without repeatedly reinstalling the motorcycle’s main tank.

Skip it if you need a stated fuel-injected application; MOTO4U’s DGYHDQK1L listing specifies use with external-pump fuel-injected models.

This porotmotor tank suits motorcycle owners doing carburetor tuning or synchronization who want visible fuel level and valve control. Its listed service focus is carbureted motorcycles, so buyers needing documented fuel-injected compatibility should choose accordingly.

Listed on Amazon as: 1L Motorcycle Auxiliary Fuel Tank for Carburetor Tuning

#4 · Compact Vented

4. MOTO4U 500ml Tank

• Capacity: 500 ml
• Material: Plastic
• Compatible with Vehicle Type: Motorcycle, Lawnmower, Small Engine

Best for: Compact carburetor adjustment.

Why it ranks #4: Its 500 ml capacity and built-in air vent suit shorter tuning tasks, while the cut-off valve controls flow and the listing includes small-engine use.

A built-in air vent paired with a cut-off valve gives this 500 ml MOTO4U tank two practical controls for carburetor tuning: pressure-balanced flow and on-demand shutoff. It supplies clean fuel directly to the carburetor while the main tank is removed for servicing, synchronization, or engine testing.

The vented design balances pressure to support consistent fuel delivery during adjustments, while the cut-off valve allows flow to stop without disconnecting the setup. Its 500 ml capacity keeps the bottle compact for carburetor work, and the listed applications extend to motorcycles, lawnmowers, and small engines. Together, these features suit tuning or testing when the original tank is removed, though the limited volume is intended for service use rather than extended operation.

Skip it if you want a full liter for longer tuning sessions; porotmotor’s 1-liter motorcycle tank offers twice this listed capacity.

This MOTO4U is a fit for carburetor adjustments and small-engine testing where compact size, vented flow, and a shutoff matter. Choose a larger reservoir if your service session requires more than 500 ml of temporary fuel.

Listed on Amazon as: MOTO4U 500ml Motorcycle Auxiliary Fuel Tank with Cut-Off Valve & Vent – Universal Gas Tank for Carburetor Tuning, Small Engine Repair, Carb Sync (Fits Bikes, Mowers, Cars)

#5

5. porotmotor 500ml Tank

• Capacity: 500 ml
• Material: Metal
• Compatible with Vehicle Type: Motorcycle

Best for: Metal bottle for engine testing.

Why it ranks #5: The 500 ml metal tank is described for small-engine work and carburetor tuning, with a vent for temporary fuel delivery during adjustments.

A 500 ml metal auxiliary tank supplies fuel directly to the carburetor while bypassing the motorcycle’s original tank, supporting small-engine work and precise carburetor adjustments. The listing also identifies testing before final assembly, making this a service-focused option for staged repair workflows.

Bypassing the main tank lets you run an engine during work when its original fuel system is not in use, and the direct carburetor supply supports adjustments without reinstalling that tank. The 500 ml capacity provides a defined temporary reserve for testing before final assembly. Its metal construction differentiates the container material, while the listed motorcycle compatibility keeps the stated application focused on motorcycle service and tuning.

Skip it if you need a 1-liter service tank; MOTO4U’s DGYHDQK1L offers twice the listed capacity and states fuel-injected compatibility.

This porotmotor tank suits motorcycle mechanics testing engines before final assembly or making carburetor adjustments with the main tank bypassed. Its 500 ml capacity makes it a temporary service supply, not a long-duration fuel reserve.

Listed on Amazon as: Motorcycle Auxiliary Fuel Tank (500ml with Vent) Gas Tank for Small Engine Work and Carburetor Tuning

#6

6. WINTOWIN 1L Tank

• Capacity: 1 liters
• Material: Plastic
• Compatible with Vehicle Type: Universal

Best for: Long-distance auxiliary capacity.

Why it ranks #6: Its 1-liter plastic reservoir has a clear scale, brass petcock control valve and 108 cm hose, though the description also emphasizes extended travel.

A 1-liter capacity and 108 cm hose make this WINTOWIN auxiliary tank relevant to riders seeking extra fuel capacity and convenient reach. Its clear scale, generous filler cap, and brass petcock provide visibility, refilling access, and flow control in a lightweight plastic tank.

The clear scale helps monitor the 1-liter supply, while the generous filler cap supports refilling without relying on a narrow opening. A solid brass petcock controls fuel delivery, and the 108 cm hose offers reach for operation; the listing positions it for long-distance motorcyclists and commuters seeking fewer stops. The product is also described as a carburetor-synchronizing tool, so it can serve workshop use as well as the stated auxiliary-capacity purpose.

Skip it if you need a clearly specified hanging workshop bottle; AnNafi’s 11009988 includes a handlebar hanging strap and fuel tap.

Consider this WINTOWIN for riders seeking listed auxiliary capacity or for carburetor synchronization, with a long hose and visible scale. The listing does not specify a mounting method, so confirm your intended installation approach before relying on it on the road.

Listed on Amazon as: Auxiliary Gas Fuel Tank Universal Motorcycle Gas Tank Repair Tool Kit Auxiliary Fuel Tank 1L with Fuel Hose,Cut Off Valve and Lid with Air Outlet

#7

7. PRAZTECH 300ml Tank

• Capacity: 300 ml
• Material: Nylon,Rubber
• Compatible with Vehicle Type: Bike

Best for: Compact carburetor service bottle.

Why it ranks #7: This 300 ml gravity-fed tank has a flexible hose and in-line shut-off valve, providing temporary fuel for compatible carbureted motorcycles and engines.

A 300 ml gravity-fed reservoir gives compatible carbureted engines a temporary fuel supply while the original tank is removed, disconnected, or hard to reach. Its flexible hose and in-line shut-off valve make it a compact option for motorcycle servicing, small-engine work, and other listed equipment.

The gravity-fed layout supplies fuel without the original tank, which helps keep a compatible engine running during maintenance. A flexible hose carries fuel to the engine, while the in-line shut-off valve lets you stop delivery when work pauses or testing ends. At 300 ml, the reservoir is suited to temporary service tasks rather than extended running. The listed applications include carbureted motorcycles, bikes, cars, ATVs, generators, small engines, and machinery.

Skip it if you need a larger service reservoir; Motion Pro 08-0032 holds up to 2,000 cc for longer tuning sessions.

Choose this PRAZTECH bottle for short servicing jobs on compatible carbureted motorcycles or small engines, especially when the main tank is inaccessible. Its 300 ml capacity is the key boundary for buyers planning longer-running tests.

Listed on Amazon as: Royal Vintage Spare Auxiliary Fuel Tank Motorcyle Tuning Servicing 300ml

#8

8. TAURISH 300ml Tank

• Capacity: 300 ml
• Material: Plastic
• Compatible with Vehicle Type: Car

Best for: Handlebar-hung carb balancing.

Why it ranks #8: Its 300 ml capacity, embossed measuring lines, on/off tap and handlebar strap make it a practical listed workshop tool for carburetor balancing.

A handlebar strap lets the TAURISH 300 ml auxiliary tank hang during motorcycle servicing, keeping its measured fuel supply accessible while the main tank is removed. Embossed fuel-increment lines and an on/off tap make it possible to monitor the supply and control flow during carburetor balancing.

The embossed measuring lines help track fuel remaining during a service session, while the on/off tap provides a simple way to start or stop delivery as adjustments proceed. Its handlebar strap supports hanging the tank near the motorcycle, matching the stated use when the main tank must come off to access the engine and carburetors. The 300 ml capacity suits temporary workshop supply, and listed applications also include cars, trucks, boats, tractors, and farm machinery.

Skip it if you need more than 300 ml for an extended test; Motion Pro 08-0032 holds up to 2,000 cc.

Choose the TAURISH for DIY carburetor balancing when a hanging bottle, visible fuel increments, and tap control suit your workshop routine. Its 300 ml capacity is best matched to temporary servicing rather than prolonged engine operation.

Listed on Amazon as: Auxiliary Fuel Tank Workshop Tool Balancing Carbs Carburettor

#9

9. AnNafi A-787 Tank

• Capacity: 300 ml
• Compatible with Vehicle Type: Bike

Best for: Vintage-bike service bottle.

Why it ranks #9: The 300 ml tank includes a 35-inch flexible rubber pipe and is described for servicing bikes, but the supplied specification details are limited.

A 35-inch flexible rubber pipe gives this 300 ml AnNafi tank reach for servicing vintage motorcycles while the main tank is removed. Its nylon strap is 17 inches long, providing a hanging option for temporary fuel supply during workshop tasks on bikes including Royal Enfield, BSA, and Norton models.

The 300 ml capacity provides a compact temporary supply for servicing, while the 35-inch flexible rubber pipe can reach from a hanging position to the work area. A 17-inch nylon strap offers a way to suspend the tank during the job, helping keep the bottle accessible as carburetor work proceeds. Its listed identity and description emphasize bike servicing and vintage motorcycles, rather than extended running as a larger auxiliary fuel reserve.

Skip it if you need a marked bottle with an on/off tap; AnNafi’s 11009988 lists 50 ml markings and fuel-flow control.

This AnNafi suits vintage-bike owners needing a compact hanging fuel supply for short service jobs. The flexible pipe and strap aid positioning, but its 300 ml capacity is the boundary for longer tests or continuous operation.

Listed on Amazon as: AnNafi® Auxiliary Fuel Tank For Servicing Your Bike 300Ml, Fuel Tanks & Accessories, Workshop Tool Balancing Carbs Carburetor, Petrol 300ML Tank Royal Enfield BSA Norton Vintage Bikes (orange)

#10

10. AnNafi 300ml Hanging Tank

• Capacity: 300 ml
• Material: Plastic
• Compatible with Vehicle Type: Motorcycle

Best for: Marked hanging service bottle.

Why it ranks #10: This 300 ml option lists clear 50 ml markings, a hose, hanging strap and ON/OFF tap, but its listed warranty is 30 days and capacity is modest.

Clear 50 ml increment markings make fuel level easier to track in this 300 ml AnNafi auxiliary bottle during carburetor balancing and bike servicing. A handlebar hanging strap, fuel hose, and ON/OFF tap give the workshop setup defined positioning and flow control while the main tank is removed.

The scale markings let you follow fuel use in 50 ml steps, while the 300 ml capacity keeps the bottle suited to temporary service supply. Its hanging strap positions the bottle near the motorcycle, and the included hose carries fuel to the engine. The ON/OFF tap provides a direct way to start or stop flow during tuning and balancing. The listing also names cars, tractors, boats, and other engines requiring temporary fuel.

Skip it if you need more temporary fuel for a longer test; WINTOWIN’s 273 tank has a listed 1-liter capacity.

This AnNafi suits motorcycle owners balancing carburetors who want visible increments, hanging placement, and a tap for flow control. Its 300 ml reserve fits short workshop tasks; choose a larger tank for longer tests.

Listed on Amazon as: AnNafi® Auxiliary Fuel Tank 300ml Hanging Testing aux fuel bottle for Bike Servicing, Workshop Tool for Balancing Carburetors, Compatible with Royal Enfield, BSA, Norton & Vintage Motorcycles