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john deere 115 wont start

#1

H

hank hank

john deere115lawn tractor blade hit object now no gas to carb. flywheel key intact. installed new coil, spark plug, air and gas filter. starter working fine. engine cranks but no gas to gas pump. please help


#2

S

shiftsuper175607

john deere115lawn tractor blade hit object now no gas to carb. flywheel key intact. installed new coil, spark plug, air and gas filter. starter working fine. engine cranks but no gas to gas pump. please help


Is the a fuel shutoff solenoid on the bottom of the carb bowl?


#3

H

hank hank

Is the a fuel shutoff solenoid on the bottom of the carb bowl?
I am a total novice and have no idea what a fuel shutoff solenoid on the carb looks like. would you mind explaining how I can determine if my john deere 115 has one, or where to look for it?


#4

H

hank hank

Is the a fuel shutoff solenoid on the bottom of the carb bowl?

thanks shiftsuper, Tried earlier to respond but I screwed it up, still learning. went online and saw the fuel shutoff solenoid but i am not getting fuel to the carb.


#5

lugnut1

lugnut1

just out of curiosity
did the engine stop same time you hit object?


#6

H

hank hank

just out of curiosity
did the engine stop same time you hit object?

Thanks lugnut, no, it did not stop after the blade hit the curb and bent the blade which then hit the deck. after disengaging the blade I drove the tractor to the rear of the house. I was not smart enough to check the deck and blade. so I tried to restart and got a heard from the blade hitting the deck. the blade hit the deck with such force that the body of the tractor shook slightly it was then that i finally realized that the blade was hitting the deck. but after changing the blade the tractor would crank but no gas was going into the carb. with help I took of the flywheel and the flywheel key was ok. I followed instructions that came with the coil on installing it. it did no mention timing or matching marks on flywheel with marks on the engine. but I don't think that it calls for timing. even so wouldnt I still get gas. I already put a new fuel pump on. I hope you can hang in there with me I am desperate and got no money for a repair shop. my grass starting to be a jungle


#7

H

hank hank

Thanks lugnut, no, it did not stop after the blade hit the curb and bent the blade which then hit the deck. after disengaging the blade I drove the tractor to the rear of the house. I was not smart enough to check the deck and blade. so I tried to restart and got a heard from the blade hitting the deck. the blade hit the deck with such force that the body of the tractor shook slightly it was then that i finally realized that the blade was hitting the deck. but after changing the blade the tractor would crank but no gas was going into the carb. with help I took of the flywheel and the flywheel key was ok. I followed instructions that came with the coil on installing it. it did no mention timing or matching marks on flywheel with marks on the engine. but I don't think that it calls for timing. even so wouldnt I still get gas. I already put a new fuel pump on. I hope you can hang in there with me I am desperate and got no money for a repair shop. my grass starting to be a jungle
the third line should have said I tried to restart and heard a noise from the blade hitting the deck.


#8

S

shiftsuper175607

Your fuel line may be full of air. Do you have a gas tank above the carb level or under the seat area?

For an under seat type...
When I replaced all lines and fuel filter and pump...I unhooked fuel line after the pump and ran a temporary line in a bucket.
I gently blew air from my air gun into the gas tank opening using a rag and my hand to provide somewhat of a seal...blew gas threw line into the bucket...hooked the line back up and away I went.

Make sure your fuel pump is connected properly.


#9

lugnut1

lugnut1

the third line should have said I tried to restart and heard a noise from the blade hitting the deck.

not sure im reading this right
but I don't believe the tractor is supposed to start with the blades engaged.


#10

KrashnKraka

KrashnKraka

thanks shiftsuper, Tried earlier to respond but I screwed it up, still learning. went online and saw the fuel shutoff solenoid but i am not getting fuel to the carb.

'Hearing' you I am gunna drag this one back to a practical level, leaving aside the usual
fault find chase.
The instructions for fitting the new coil? They describe disconnecting
wiring, unbolting the coil (two bolts, yeh?), fitting the new coil, using a
spacer/shim between the coil face and flywheel, and reconnecting wiring. Right?

Now, in any of that, any removal of covers etcetera... is it possible to have disturbed
another adjacent wiring loom, or connecter body? Check all in the vacinity of the work area
for tight, anything even remotely disturbed, unplug the connector, give it a rough clean
using a small paintbrush and some "metho" and reconnect.
Look carefully and use a torchlight.

Trust that helps some.

KK


#11

JD is best

JD is best

Just to be sure, dump some gas in the carb and try to start.


#12

M

mrstan

Hi there!

It might be a good idea to just revisit the very basics of any small engine operation... That is to look at 1. Spark 2. Fuel delivery 3. Timing 4. power delivery and safety concerns

1: Spark present?

If you take the spark plug loose and put cable on it and touch to frame and turn it over, do you see a spark on the plug electrodes? If you see the arc, then move on..

2: Fuel delivery

If you take the hose lose at the fuel filter, and put it into a tiny bowl of gas, does the gas suck out of the bowl through the hose you disconnected? The fuel pump on the side of the motor should be able to pull gas steadily here.

4: Power Delivery and Safety Concerns

I skipped to this point because it might be more obvious and easy to test...

Is the PTO engaged for the blades? This might sound obvious at first to check, but there is a switch in the dash that tells the mower that the pulley has been engaged. This would go in conjunction with the RIO switch as well to keep the engine from running as well. You should probably need to check all your switches as these are there to keep you safe. They are all over your mower, so look at your model schematic on the John Deere web page with the wiring diagram for your model.

3: Timing Check

I skipped this one earlier because you will need some kind of timing light to do this to check if you are in time or if you have knocked the engine out of synch.. This is somewhat complicated so I will not go into this here.. I think the #4 is more likely to be your problem anyway.

Check your spark and fuel delivery and then dig into your sensors and switches... GROUNDS are critical here by the way... clean them all up and get some "bulb grease" to squirt into all of your contacts after you clean them up really well. Bad connections or faulty sensor/switches are usually the cause of most issues...

See if this helps you out...


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