How does a fuel cut off solenoid work?
Solenoid fuel shut off valves are used to close the main jet or main fuel circuit in the carburetor when the key is turned off. The solenoid valve works by using a spring loaded plunger to press against the main fuel circuit passage and prevent fuel from entering the passage.
How do I know if my carburetor solenoid is bad?
To check if cutting out, sputtering, on a B&S engine with a carb solenoid, remove solenoid, depress plunger, wedge a tooth pick beside plunger to hold it, break off tooth pick and re-install solenoid. IF problem clears up, you know it was solenoid, if not, you have not damaged solenoid and can remove tooth pick.
How do you test a 3 wire fuel shut off solenoid?
There is many types of fuel solenoid, this one is the fuel shut off solenoid. 3 wires, a black wire to ground, red wire goes to positive, white wire touches red wire for one sec to pull and hold the solenoid. When red wire disconnect from positive, it will stop holding.
Why is the solenoid not engaged on a John Deere tractor?
Here is a theory of operation of the module: To operate as a safety interlock to control safe starting, operation and shutoff of the machine engine.
What does J ( WHT ) stand for On Y2 solenoid?
J (Wht) – voltage in from the fuel relay contacts (650 Wht/Blu) which also provides input voltage to the Y2 Fuel Solenoid Shutoff pull-in coil (651 Wht/Blu). This voltage starts the control module internal timer (1 second) which controls the ground circuit path (I) for the fuel relay coil (658 Lt/Grn).
How is the fuel shutoff solenoid held in?
See “Engine Shutoff Circuit Operation”. The fuel shutoff solenoid hold-in coil is held in the energized state by voltage provided from the control module (655, 656 Grn/Wht). The control module contains a 0.5 second delay timer, controlling the voltage to the hold-in coil.
How big is the fuel solenoid control module?
Ron, welcome to the forum! The control module for the fuel solenoid is larger than the other relays. It is approx. 2″ X 3″ X 1″ thick. It has a short harness with a 10 pin connector attaching it to the main harness.