Full Suspension Mountain Bike Men
STATOR WAS REPLACED, AFTER TEST START, THE ENGINE STAYS RUNNING ON 2 CYL. THE ONLY WAYS TO SHUT ENGINE OFF IS DISCONNECT 2 WIRES COMMING FROM THE STATOR, OR DISCONNECTING THE NEG. BATTERY CABLE, AND REMOVING A FUSE. HOW CAN THIS BE FIXED SO WHEN THE IGNITION SWITCH IS TURNED OFF, THE ENGINE TURNS OFF.
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I would recheck wiring at stator.
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If the engine continues to run just as before you turned it off – as if you hadn`t turned it off at all – your ignition and fuel system are not shutting down. In that case, your car has an electrical problem that needs to be addressed. Either your ignition switch element or a power relay needs to be replaced.
If you switch your engine off and it continues to run or splutter then you are experiencing run-on or dieseling. This can caused by a number of things: 1) Too fast an idle speed. 3) Too lean a fuel mixture at top end from incorrect jetting or airleak, casuing the engine to overheat.
A fuel pump that stays on when the ignition is turned off can be caused by a few things. If you do not believe that the behavior is normal, then it may be possible that the the ignition switch or fuel pump relay have shorted and are feeding power to the pump.
If your car is revving without you pressing the gas, there are a few potential causes. It could be an issue with the throttle body or throttle position sensor, the idle control valve or vacuum leak. If your car has an automatic transmission, it could also be a problem with the transmission itself.
What is the Idle Stop Solenoid all about? Most older vehicles are equipped with a device called an idle stop solenoid that works to close off the throttle when the key is turned off. It prevents engine idle from continuing once the fuel and air stop being delivered to the engine.
There are only two ways to stop a diesel engine, cut off the fuel or the air. The easiest approach to stop a boat engine is to cut off the air. This approach leaves the engine perfectly service worthy and it will start again immediately.
Diesel engines don`t burn much fuel at idle. Diesel engines create more heat by idling. Diesel engines must idle or they won`t restart. engine wear, and should reduce air pollution.
The fuel pump relay is controlled by the PCM by providing the relay with a ground. The PCM chooses to turn the relay on when it sees the motor is running. If the PCM doesn`t see an indication of the motor running, it will not supply a ground path to the relay and the fuel pump will not receive power.
The ignition switch will momentarily provide power to the fuel pump and ignition system when it is in the cranking position, which may allow the vehicle to start. However, if it has failed in the “on” position, it will cut off power to the fuel and ignition systems as soon as the key is moved back to the “on” position.
A dirty air intake or cracked air intake tube is often the culprit.
Typically, engines idle at about 600-800 rpm. Older engines may go up to 1200 rpm or more while warming up. But if the engine is revving up while idling, even after it`s sufficiently warmed up, you might have a problem.
The most common idle solenoid symptom is an engine that won`t idle but will run above idle. When this happens, listen to the solenoid while a helper turns the ignition switch on and off. If the solenoid doesn`t click every time he cycles the ignition switch, check for battery voltage at the solenoid with the key on.
Check for Spark at Coil
Simply remove the coil wire from the distributor and leave it connected to the coil. Then place the disconnected end near a ground, crank the ignition, and watch for spark. An alternative is to check the resistance on the primary and secondary windings with the multimeter.
Fact: This is one of the most common myths about diesel engines. Most engine manufacturers recommend that newer diesel engines idle for no more than 3 minutes before driving.
The fastest way to stop a diesel runaway is to cut off the fuel and air supply. Because diesel engines need these two ingredients to stay running, finding the source of the fuel leak and stopping it is necessary. If you already know the cause, stop the fuel`s flow as safely as possible.
Diesel high idle keeps the oil pressure up to ensure that it`s properly circulating and lubricating the engine. It`s important for the oil pressure to be kept up to ensure that it`s properly circulating and lubricating the engine. High idle can help with this.
Diesel engine power loss can usually be attributed to something wrong with the fuel or the fuel delivery. In the case of contaminated fuel, this will affect your diesel engine`s power. Other problems include clogged fuel injectors, a loose throttle linkage, or problems with the engine`s lubrication.
Diesel engine runaway occurs when a diesel engine ingests a hydrocarbon vapor, or flammable vapor, through the air intake system and uses it as an external fuel source. As the engine begins to run off these vapors, the governor will release less diesel fuel until, eventually, the vapors become its only fuel source.
After a diesel delete is completed, the soot-clogging issues are eliminated. There may also be performance improvements such as an increase in torque/horsepower as well as an improvement in fuel economy.
Faulty Fuel Pump Relay: The fuel pump relay controls the power supply to the fuel pump. If the relay is faulty, it can cause the fuel pump to run continuously even when the engine is turned off. Bad Fuel Pump Control Module: The fuel pump control module is responsible for regulating the fuel pump`s operation.
Electronic Control Unit (ECU)
The ECU is the brain of the operation. It uses engine RPM and signals from different sensors to meter the fuel. It does this by telling the fuel injectors when and how long to fire. The ECU often controls other functions like the fuel pump and ignition timing.
As the engine is cranked, the crankshaft position sensor indicates to the PCM that the engine has reached a minimum cranking speed of about 250-300 rpm. At that point, the PCM re-activates the fuel pump.
The fuel tank pressure sensor is part of the fuel pump assembly and is mounted on top of the tank or inside the tank. It`s part of the evaporative emissions system (commonly referred to as “EVAP”) and reads pressure in the fuel system to detect evaporative leaks, such as a loose or faulty gas cap.
when you switch the ignition on, the fuel pump situated inside the fuel tank starts pumping fuel to the engine. so yes, it DOES run even when the engine is off, when the ignition is on.
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1100CC ENGINE KEEPS RUNNING ON 2 CLY. AFTER TURNING OFF
ANSWER : I would recheck wiring at stator.
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I have a 2004 60 hp yamaha 2 stroke outboard engine that doesn’t start or run well. Once warm and in the water it will idle in nuetral and also in gear. It accelerates in neutral but will die or lack power if I increase throttle while in gear. Engine will somtimes get to top speed but often while running at top speed engine will start to slow rapidly. Engine has full range of operationout when out of the water where there is no load on engine but is still difficult to cold start. Before these recent problems the engine sat up for several months and I had to change the impeller and spark plugs. Spark plugs fire, cylinders have proper pressure of 100, 100, and 110. I cleaned some fuel lines and filters and got new gas.
ANSWER : Every sympton you are describing here can be attributed to fuel starvation due to blocked jets and or water in carbs, when your engine dies does it die with dry plugs, or wet oily ones?
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I have a 99 yamaha f100 four stroke outboard. Problem I have is boat will acclereate fine get up on plane and after running for about a mob at wot will decell and only run around 4500 rpm. Then after coming back to idle will have a slight miss then run smooth and repeat every run. Changed the plugs and fuel filters alll oe yamaha has fresh oil timing belt is good any ideas will help or fuel psi spec. I am an ase master automotive tech so I know alot about engs. To me it feels like it’s running out of gas. Like the carb bows are full when I take off but then runs out after running wot. Any info will help
ANSWER : I have exactly the same problem with my Yamaha F100, have you got any solutions yet?
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I have the Intex Sand/Pump pool filter Model SF 20110. It’s been running real great for the last 4 months. However recently it has been tripping the internal overloads and I have found the pump motor to be very hot when I put my hand against it. I have tried several different solutions, such as a level ground platform that was clear of any obstructions, made sure that the motor vents under the motor was clear of anything that would prevent air flow. I used a non electrical type of lubricate on the impeller. When I would turn on the pump the rotor would not turn but only would hum very loudly and then slowly begin to turn. I also noticed that the motor’s rotor shaft would not turn to freely due the tightness around the rotor’s shaft. After using the lubricate the shaft would turn a little easier. I used an amp meter on the incoming voltage line and the motor would run at 4.5 amp. And yet it still overheated and tripped the motor overloads. I can only think that the motor is still not getting enough ventilation. I have check and cleared all the incoming lines and found nothing block the pumps input or output lines. Any suggestion?
ANSWER : I just looking into this issue my self. The pump cools itself by a internal fan, which is run by the motor. Well I took the housing cover off to find out all the fan blades have broken off and were setting in the base of the pump. Once you remove the fan blades from covering the air intake, it might be fine. I will find out my self once summer gets here.
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My engine revs on high by itself and runs rough
ANSWER : We had the same problem with our snowblower. we tried everything. ponits, adjustments. even converted points to electronics. we ened up putting on a brand new carborater and it runs great now. save youself the headaches and buy a new carborator. we spent $87. so much better
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Extremely high rpm’s in neutral
ANSWER : Maybe the idle speed needs to be decreased, or check for engine overheating since you said that this happens after you have had the engine on for a while, this too can hcause strange rpms.
Good Luck!
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Cannot turn engine over to start. Ariens 924 snow blower
ANSWER : Pull spark plugs and see if it will pull over if not fuel may have filled the crank case drain & refill to proper level (starter is stuck in lube shaft & movethe gear up & down by hand to free up)
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