What does the air cutoff valve do on a GL1000?
The air cutoff valve is a simple but vital component of the carburetor system on GL1000s. Its function is to eliminate backfiring on hard deceleration (throttle fully closed). Hard deceleration creates a high vacuum signal in the intake tract which activates the valve.
What happens if you eliminate the air cutoff valve?
Davek I respectfully to disagree with your comment that by eliminating the air cutoff valve would lead to a overly rich pilot circuit. To eliminate the air cutoff valve you would not only increase the pilot jet but also the needle would have to be recalibrated.
Can a Honda air cutoff valve be rebuilt?
In lieu of the expensive Honda item, aftermarket air cutoff valves are available from a variety of outlets at reasonable prices. The actual rebuild procedure is straightforward and well covered in the Official Honda, Clymer and Haynes Manuals. Your carbs need NOT be removed to rebuild the air cutoff valve.
What are the emergency air intake shut off valves?
July 12, 2014 | Blogs & Editorials. Also known as ASOV, AISV, ESD or emergency shutdown valves, air intake shut off valves are systems that allows for emergency over speed shutdown and protection for diesel engines. They are by far the most efficient systems are used to prevent engines getting into runway situations today.
The air cutoff valve is a simple but vital component of the carburetor system on GL1000s. Its function is to eliminate backfiring on hard deceleration (throttle fully closed). Hard deceleration creates a high vacuum signal in the intake tract which activates the valve.
How do you rebuild an air cutoff valve?
Your carbs need NOT be removed to rebuild the air cutoff valve. 1. Remove the valve which is held to the plenum by the 2 screws at the base (not the 2 screws on top which secure the cap). 2. Disassemble the valve by removing the top plate held by the 2 short screws.
Why is my air cutoff valve not working?
Often, they fail in a more insidious way by shifting the “function point” of the valve to a higher vacuum / rpm level than designed. So, even though the diaphragm is intact and will hold a test vacuum…you can get an excessively lean condition resulting in poor off-idle throttle response.
Why do you need an aircut valve on a motorcycle?
This article is by way of clarifying and justifying the procedure. The aircut valve’s job is to momentarily block the air side of the idle circuit (its air bleed, in other words) to make conditions for exhaust afterburn less likely. To eliminate popping on decel.