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Why my 2007 John Deere 777 zero turn started and ran then turned the blades on and it killed the engine I checked the wires and spark plugs all seems to be fine just won't hit and run ?

Posted by Anonymous on

6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

rwvanlue
  • 486 Answers

SOURCE: I have a John deere 317 tractor that does not start.

We will be testing for voltage to the points, coil, engine to tractor wiring harness, ignition switch

Tools needed:
volt meter to read 12 volts, or test light

1) with the points open: is there voltage at the connection wire at the points
If yes; adjust points to .020" and try to crank engine and check for spark
*** you may want to determine if condensor is connected to this wire also
if no
2) check point side (neg or - ) of coil for voltage
if yes, engine should start
if no
3) check for voltage at the + side of coil
If yes, coil is bad
if no
4) check wire connector from engine to frame wiring harness
if yes; engine should start

if no
5) check wiring on the back of ignition switch
if yes; engine should start

if no
6) check that ignition switch RED or BATTERY supply wire has voltage
if yes; switch is bad

if no
7) check supply wire and circuit breaker connected to the battery side of the solenoid
if yes; engine should start

if no; circuit breaker could be at fault or wire connector at battery supply

Posted on Nov 08, 2009

  • 52 Answers

SOURCE: John Deere 445 Garden Tractor, starts immediately,

could be bad gas, but it sounds like a choke problem. did it sit over the winter with less than a half tank of gas in it. try putting some rubbing alcohol in the fuel or draining the tank and disconnecting the gas line so you can drain the gas out of the carb. also check the gap of the spark plug and make sure that is correct. when was the last time there was fresh oil put in. also check the air filter, it could be full of dirt.

Posted on Apr 18, 2010

Testimonial: "Thanks for the ideas. I will try your suggestions. Tractor used for snow blowing during the winter and gas did not stay in it long. Good ideas!"

  • 1 Answer

SOURCE: John Deere ZTRAK 737 zero turn - runs rough - one plug

My idea would be to replace the coil to that plug

Jim Kite paris, il

Posted on Apr 15, 2011

  • 6468 Answers

SOURCE: I have a John Deere 757 Zero Turn and the Clutch won't engage to engage blades. I pull the switch and nothing happens. have checked safety checks

check the wires just as they go into the clutch i have had them break there and have been able to repair the wire

Posted on Aug 10, 2012

  • 6468 Answers

SOURCE: John Deere L110 won't start.

check the solenoid on the bottom of the carb see if there is power if no power check the safety switch on the brake/clutch if there is power remove the solenoid and put power and ground to it to see if it opens if not try and clean it with carb cleaner if that works and opens remove the bowl from the carb and check the needle valve on the float make sure it moves

Posted on Sep 03, 2012

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You probably have sheared the safety pin in your pulley drive. To change you have to take the pulley off. Try turning the pulley by hand If it turns free you did shear the pin.. Take spark plug wire off before so you do not hurt yourself. Safety first.

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manuals.deere.com/cceomview/OMM152795.../OMM152795_H46.html
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John Deere x300 series 2009 model I unhooked the kill wire and it started. But now my mower/pto will not engage is there a way to bypass the sensor?


Based on the combination problems involving the coil kill wire and the PTO activation, I would suspect the PTO switch is bad.

I do not have a schematic for the 300x, however I most of the functions are comparable to the LA 145, 165, 175.

The PTO switch is a multifunction switch. It will have 3 to 4 different functions internally. On the LA 175 it serves 3 functions. These 3 internal functions are independent of one another. Electronically they are known as single pole/single throw switches. In other words even though they are all housed inside a single unit they act light 3 separate light switches in your house.

One function ("light switch") controls your cranking system. When the key is turned to Start, power flows from the Key switch (purple wire) to the PTO switch. With the PTO switch off it flow out (purple/white) and goes to the Brake switch. If the Brake is set the power flows through to the starter solenoid and your engine cranks.

Another "light switch" inside the PTO switch controls the Blade Clutch. Power flows from the Key switch, in run position, (yellow wire) to the PTO switch. With the PTO switch on it flows out another yellow wire to the Blade Clutch. A DC volt meter should show 12 volts switching on and off as the PTO is turned on and off.

The third "light switch" completes a Ground Path. This ground path is a totally separate pathway running through the PTO switch. The ground system is fairly complex because it operates differently under different scenarios.

To produce a spark, the key switch must be in the start or run position. While starting the PTO must be off and the brake set. The seat switch does not matter at this point.

Once the engine is running the seat switch plays a part if the PTO is activated or the Brake is released. Someone must be in the seat.
The Kill system is activated
  1. When the key switch is turned off.
  2. When the operator leaves the seat without setting the brake and turning off the PTO.
  3. When the machine is reversed while the PTO is engaged and the back up switch (RIS) is not pressed.

So there are three different paths to ground; any of which can kill the engine by grounding the coil. Except for turning off the key, all other grounding functions flow through the "grounding light switch" in the PTO.

Because you have a combination problem, the Coil kill wire is grounding the engine and the Blade Clutch won't activate the blades; both of which are affected by the PTO switch, odds are you have a bad PTO.

Obviously there are too many complex functions to just bypass the switch. You will have to replace it. The part number you need is AM135131. You can do a site search to locate and order this replacement switch for about $26.00 including shipping at this site: GreenPartStore Parts for John Deere Lawn Tractors John Deere Lawn Garden...

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1 Answer

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