What size is motorcycle fuel line?
What size is motorcycle fuel line?
The correct fuel line is metric sized 5.3 or 5.5 mm, which fits on the nipples properly.
What is the best motorcycle fuel line?
Motion Pro Premium Fuel Line is some of the best fuel line that can be bought. It stays soft, resists cracking, will bend without kinking, is very durable and will last a long time. I have used the grey & black line on several bikes now & am very impressed.
What is the best material for fuel lines?
PTFE
What size are fuel lines?
Recommended Size, Based on Horsepower
| Recommended Fuel Line Size (from the tank to the pump) | ||
|---|---|---|
| Engine Output | Size (inches) | Size (AN) |
| 350-450 hp | 3/8 in. | -6 |
| 450-650 hp | 1/2 in. | -8 |
| 650-1,000 hp | 5/8 in. | -10 |
Can a fuel line be too big?
The fuel line size being too large won’t really affect the fuel pressure. Excessive fuel pressure is what can cause the fuel to overrun the needle/seats and flood the motor with excess fuel. That being said running a -8AN fuel line is beyond overkill for a 340 but it shouldn’t adversely affect it….
What size is 8AN fuel line?
The Good News
| Male Thread Size | AN Size* | Equivalent Tube Size (Nominal OD) |
|---|---|---|
| 7/16-20 | 4AN | 1/4″ |
| 9/16-18 | 6AN | 3/8″ |
| 3/4-16 | 8AN | 1/2″ |
| 7/8-14 | 10AN | 5/8″ |
How much HP can fuel line support?
A 3/8”id fuel line can easily support 600 HP given sufficient “pump head”! Given a big enough pump a 3/8” steel line could support 1000 HP. The simple way to know is to install an electronic fuel pressure gauge….
How do I know what size fuel line I have?
Tubing is OD (outside diameter) and Pipe is ID (inside diameter). So the easiest way to tell the size of your fuel line, which is tubing, is to use a combination wrench. Whichever one slips over snuggly is the winner….
What size should my fuel return line be?
When using a Return Style Fuel Pressure Regulator, it must be able to return 100% of the fuel back to the tank. The Fuel Return Line should be at least the same size, or one size larger than the supply. The return line should direct fuel close to the bottom of the tank and away from the pickup….
Do you need fuel return line?
You don’t really “need” a return; but the car will work better if it has one, on the street. The fuel pump pressurizes fuel to send it to the carb. If the engine isn’t using much fuel (sitting still idling for example) the fuel in the line will be mostly just sitting there, getting hot….
Where does fuel return line go?
Some fuel return hoses will run along the frame of the vehicle and go straight to the fuel tank with little as possible bends. Other fuel return lines have many bends and may be longer than normal. This helps the fuel cool down prior to entering the fuel tank….
Do carburetors need a return line?
Registered. Yes, depends on the setup….. most aftermarket regulators have a return port in them. If you run a return your pump will run cooler and run for longer….
How much fuel pressure is needed for a carburetor?
Fuel pressure should be set between 6 and 8 psi for a gasoline carburetor. An alcohol carburetor is a different animal with very different requirements. The Alky carburetor will require 4 to 5 psi at idle and 9 to 12 psi at wide open throttle. Remember, fuel pressure is not a substitute for volume!
Do I need a return line with a fuel pressure regulator?
Requires no fuel return line and fittings from the regulator to the fuel tank. This reduces weight, complexity (routing a return line can prove to be difficult), and expense. Multiple regulators (set at different pressures, such as with a nitrous oxide system application) may be used from one pump….
Can you use an electric fuel pump with a carburetor?
Yes, you can and some cars like Chevrolet Vegas and equipment was factory manufactured with electric fuel pumps. Many electric fuel pumps are designed to run in fuel tank or inline outside the tanks , with pre-set fuel pressure for carburetor use.
Do you need a fuel pressure regulator?
The fuel pressure regulator is necessary for the proper running and optimal performance of the pressure and the car’s internal fuel system, providing the injectors’ required support….
Do fuel pumps add horsepower?
Horsepower As horsepower increases so does the volume of fuel required to support that power. A good estimator of volume to power is approximately 10 hp per gallon or 2.64 hp per liter. For example if your pump flows at 50 gph it should be able to support a 500 hp engine (50 x 10 = 500).
Is higher fuel pressure better?
Remember, as fuel pressure is raised higher and higher, the flow available from the fuel pump gets smaller and smaller….
What are the symptoms of a bad fuel rail pressure sensor?
Usually a bad or failing fuel rail sensor will produce a few symptoms that can alert the driver to a potential issue.
- Hard starting. One of the first symptoms of a potential problem with the fuel rail sensor is hard starting.
- Decrease in power, acceleration and fuel efficiency.
- Check Engine Light comes on.
Should fuel pressure drop accelerating?
Fuel pressure should not drop. If it is dropping below 59lbs, there is an issue. Stock is 59lbs. The only time you should see more is if you are using a boost reference regulator….
What causes low fuel rail pressure?
Typical causes for low fuel pressure include a dirty fuel filter, weak pump, incorrect tank venting, restricted fuel lines, a clogged pump inlet strainer and faulty electrical control. The fuel pump driver module on Ford trucks of this vintage is known for corrosion-caused failures….
What happens if a fuel pressure regulator goes bad?
If the vehicle’s fuel pressure regulator fails or has any issues it will disturb the fuel pressure of the vehicle. A faulty fuel pressure regulator may cause the vehicle to experience misfires, a reduction in power and acceleration, and a drop in fuel efficiency….
What are signs of bad fuel injectors?
Here are a few signs there might be something wrong with your fuel injectors.
- The Engine Misfires. Dirty fuel injectors may cause your vehicle’s engine to misfire.
- Idling Gets Rough.
- Your Gas Mileage Tanks.
- The RPM Needle Starts to Dance.
- Your Car Won’t Start.
Can you repair a fuel pressure regulator?
A faulty fuel pressure regulator is a ubiquitous part to cause a lot of engine problems. But luckily, it’s not an advanced part to replace, and you can often do it yourself, and it’s usually pretty cheap….