How big is a double throttle check valve?
Available for operation up to 350 bar, and for flow rates of up to 400 litres per minute, the range caters for a range of hydraulic system requirements – from large-scale equipment to mobile hydraulics. For specification advice to ensure the right throttle or double throttle check valve for your needs, call us today!
Where is the cutaway on a throttle valve?
The throttle valve will have a “cutaway” on the air box/intake side of the carburetor, and it basically impacts the pressure signal across the pilot and needle jet. The best way to describe how this signal varies is to imagine placing your thumb over a garden hose.
Where can I find a genuine SU carburettor?
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When do you change the throttle valve on a motorcycle?
The throttle valve slide is definitely overlooked when tuning a carburetor. Most people, including myself, will change out pilot jets first to alter low speed running conditions. How does the throttle valve effect jetting?
Why do throttle valve cutaways need to be smaller?
Pressure decrease! This is known as Bernoulli’s principle. So by altering the cutaway size on the throttle valve, the pressure/signal of airflow through the carburetor can be changed. Therefore a smaller cutaway will have a stronger signal due to creating lower pressure, thus a richer condition, than a larger cutaway will.
What are the throttle valves on a Mikuni?
Below are 3 different Mikuni VM round slide throttle valves. On the left is PN VM32/65-2.0, middle is PN VM32/65-2.5, & on the right VM32/65-3.0. The slide on the left will cause the motorcycle to run richer than the middle and rightmost pictured slide.
The throttle valve slide is definitely overlooked when tuning a carburetor. Most people, including myself, will change out pilot jets first to alter low speed running conditions. How does the throttle valve effect jetting?
Why are my carburetor parts changing their positions?
With the inherent vibration of all engines, carburetor parts—primarily adjusting screws—tend to rotate, and therefore change their positions. Low-speed running jets and multicylinder balancing screws are the items most prone to self-adjust during normal operation and often require periodic corrections.