distributor shaft
On the rear of the carb there should be a black plactic knob on a shaft with a spring. You will probably have to take the air cleaner housing off. Tightenen to idle up, loosen to idle down.
The throttle shaft in an engine is held in the idle position primarily by the throttle return spring, which provides the necessary tension to keep it closed when the accelerator pedal is released. Additionally, the idle stop screw may be used to set and maintain a specific idle position by limiting how far the throttle plate can open. In some systems, the engine management system may also play a role in controlling the idle position electronically.
On a Briggs & Stratton engine, the throttle shaft is held in the idle position primarily by a combination of a throttle return spring and the governor system. The throttle return spring provides tension to keep the throttle in the idle position when no other forces are acting on it. Additionally, the governor mechanism helps regulate engine speed by adjusting the throttle position based on load and speed, ensuring the engine maintains a stable idle when not under load.
on some models yes. it has to freewheel in idle, even though it's not driving anything.
Check the cam shaft position sensor
# If its the same as a EF-EL motor then here is the diagram # Start with the belt around the outside of the * Alternator then on the outside of the * Powersteering then the outside of the * Idle pully then the outside of the * Air conditioner then on the outside of the * Crank shaft then around the crank shaft to the right side of the * Tensioner then around the tensioner to the top of the * water pump then from the water pump back to the bottom of the * Alternator power steering Alternator Idle Air Con Crank shaft Water pump Tension # If its the same as a EF-EL motor then here is the diagram # Start with the belt around the outside of the * Alternator then on the outside of the * Powersteering then the outside of the * Idle pully then the outside of the * Air conditioner then on the outside of the * Crank shaft then around the crank shaft to the right side of the * Tensioner then around the tensioner to the top of the * water pump then from the water pump back to the bottom of the * Alternator power steering Alternator Idle Air Con Crank shaft Water pump Tension
a longer cam shaft will make a car idle rough
governed idle spring
It's a flex shaft with a Phillips #2 head, connected to the carburetor. It could be dangling because the mount is wire junk.
1,350-1,450 rpm (Shaft driven 2 3/8 turns out) (chain driven 2 turns out)
Check idle air control valve on throttle body. Mine had similer problems. A quick fix to get you going should be just unplug and remove spray w/ cleaner to get carbon off spring and cone shaft, reinstall. remember, this is just temporary.