How big is a petcock on a gas tank?
A pre-filter is attached to prevent sediment from entering the carburetors. Single ribbed fuel outlet for use with 1/4″ fuel line. Measure the outer diameter of the male threading on the gas tank prior to purchase. 20mm x 1.5mm is not the measurement of the petcock.
Where does the fuel go when a petcock runs out?
Here is how this works. These petcocks have inlet towers which stick up into the tank. In the “on” position, fuel flows down to the petcock through an opening high on the tower. So when you “run out of fuel” you actually have some more fuel sitting in the bottom of the tank which lies below this high inlet.
Why is the petcock shut off on a Magna?
Due to the gravity fed gas tank the petcock is usually shut off when not riding. On the magna there is an auto fuel cut of valve. The diaphragm in this valve is known to fail cause continual flow of fuel thus flooding the carbs cause leaks and even allowing fuel into the oil.
How does a petcock work in a virago fuel system?
The petcocks are vacuum operated petcocks. This means that they have a little diaphragm and valve set-up in them which responds to engine vacuum and allows fuel to flow only when the engine is running and supplying vacuum. This is how things work when the petcock lever is set to the “on” or “run” setting.
A pre-filter is attached to prevent sediment from entering the carburetors. Single ribbed fuel outlet for use with 1/4″ fuel line. Measure the outer diameter of the male threading on the gas tank prior to purchase. 20mm x 1.5mm is not the measurement of the petcock.
How big is the nut on a CB750F gas tank?
CB750F (1977-1978) Supersport (Works Perfectly but different than stock type which is no longer available, gas line goes to the right with this petcock when looking at it instead of back or down.) Nut Thread Diameter is 14mm, 1.5 Pitch.
What kind of hose clamps do I need for a fuel line?
Part CB-70412 wire hose clamps are the correct size to use for this fuel line. Part CB-70413 wire hose clamps are the correct size to use for this fuel line. Part CB-70413 wire hose clamps are the correct size to use for this fuel line.