What is a Fuel Tank?
Stores the petrol until the engine needs it, usually sitting above the engine on most bikes.
Simplified animation — not to scale.
In plain English
The fuel tank holds your petrol supply and, on most motorcycles, doubles as a structural part you lean on and grip with your knees. A fuel pump or gravity feed then carries fuel onward to the engine.
“A saddlebag for petrol, shaped to fit the bike and your knees at the same time.”
How it works
Fuel sits in the tank until drawn out through a pickup pipe, usually by an internal fuel pump on injected bikes, then delivered under pressure to the injectors. A vented filler cap lets air in as fuel level drops.
Signs of trouble
- ⚠Smell of petrol without a visible leak
- ⚠Rust or sediment visible inside on inspection
- ⚠Fuel gauge reading inconsistently
- ⚠Dents or corrosion around the base
What affects the repair?
We don't publish a generic price for this part because a responsible estimate needs a named motorcycle and a recent quote. These are the factors a qualified technician will weigh up.
- •Diagnosis: intermittent or system-wide faults may need dealer-level tools before the actual part can be identified.
- •Accessibility: some parts are quick to reach; others require significant fairing, tank or engine-cover removal.
- •Model differences: prices and labour times vary widely between manufacturers and specification levels.
- •New vs used: a genuine OEM part fitted at a franchised dealer costs more than a serviceable used or aftermarket part.
- •Calibration / coding: some parts require post-fit calibration, coding or a road test, which adds labour time.
Technical review pending