dstriker 2 #1 Posted November 17, 2014 Used the tractor the other day mowed about half the yard parked the tractor maybe two hours later went out to finish went to start it and it was turning over then I stopped to talk to my wife then tried to start again and nothing acts like there's no battery but I know the battery is good tried an ignition switch and still nothing tried jumping the starter and it was turning over but couldn't get it to start I don't particularly know a lot about these so I'm turning to the experts on here please help as I need to get it going snow is flying thanks Share this post Link to post Share on other sites
dstriker 2 #2 Posted November 17, 2014 Additionally I have had this tractor a few years and the seat safety has not been hooked up and when I test the lights I get nothing Share this post Link to post Share on other sites
nylyon-(Admin) 7,088 #3 Posted November 17, 2014 Is the deck still engaged? Neutral? If it's an automatic, move the motion control back and forth to insure it's set in neutral. Engage and disengage the PTO. Other than that, more information, which model 416 do you have, year? Share this post Link to post Share on other sites
dstriker 2 #4 Posted November 17, 2014 It is a 416-8 and 1990 I believe I have tried engaging and disengaging the pto and made sure it was in neutral and it has an onan on it Share this post Link to post Share on other sites
Martin 2,130 #5 Posted November 17, 2014 Check the fuses. Share this post Link to post Share on other sites
dstriker 2 #6 Posted November 17, 2014 I found three of them and they were all good under the battery there is a spot for a fourth but there wasnt one in there Share this post Link to post Share on other sites
WH nut 553 #7 Posted November 17, 2014 First thing first. Check your grounds, then make sure you have 12v at the ign. switch. Once that's verified we will continue Share this post Link to post Share on other sites
dstriker 2 #8 Posted November 17, 2014 How do I check the v at the ignition switch I'm not very smart with this stuff but the last time I took a mower to a shop I got the tranny back in a bag so not to trusting in shops I have a multimeter Share this post Link to post Share on other sites
WH nut 553 #9 Posted November 17, 2014 if you have a multimeter set it to 12vdc black lead on ground and red on battery post one switch. You need to go to manuals and download the wire diagram for your tractor. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,441 #10 Posted November 17, 2014 1990 416-8 wiring diagram Garry 1 Share this post Link to post Share on other sites
dstriker 2 #11 Posted November 17, 2014 I also noticed I have no spark when jumping the starter is that normal Share this post Link to post Share on other sites
dstriker 2 #12 Posted November 17, 2014 (edited) i checked the volts and got nothing given i checked it right i believe i did there is power to the coil and power to the starter when we tried checking the power to the coil with just a probe light and had the key turned over there was a humming noice not sure where it was coming from sounded like under the battery also when this happened one of the lights came on on the dash i had two guys helping and they were stumped as to why there is power everywhere but no spark and why we cant get anything from the key. i also talked to a dealer that told me it sounded like a safety switch of some sort but said that shouldnt cause no spark but wouldnt say much else trying to get me to bring it in. i also noticed on the top of the motor towards the battery there is a wire that is burnt it plugs into a plate on the motor along with a few other wires not positive what its to Edited November 17, 2014 by dstriker Share this post Link to post Share on other sites
Theroundhousernr 589 #13 Posted November 17, 2014 The plate is the rectifier if I am understanding you correctly. And whatever dealer told you safety switches should have nothing to do with spark...... well Share this post Link to post Share on other sites
dstriker 2 #14 Posted November 17, 2014 so possibly a safety switch???? Share this post Link to post Share on other sites
Theroundhousernr 589 #15 Posted November 17, 2014 (edited) Is there twelve volts at the coil with the key in the run position? Also if wires are burnt there is surely an underlying issue that needs to be addressed , which will most likely lead you to your issue of no spark when you find it. With your lack of knowledge on this particular problem , it will be a tough one for you on this particular model. I am not to great at the internet diagnoses. If I was there with you in front of it , I would be able to find the problem in no time and be off and running. Follow the advice given carefully one step at a time and you will get there. I will chime in when I can. Edited November 17, 2014 by Theroundhousernr Share this post Link to post Share on other sites
dstriker 2 #16 Posted November 17, 2014 ok thank you Share this post Link to post Share on other sites
dstriker 2 #17 Posted November 17, 2014 and yes i got 12v from the coil with the key on Share this post Link to post Share on other sites
ericj 1,576 #18 Posted November 17, 2014 do as told above you could check the 9 pin connector and possible the start relay which should be right behind the battery on a 90 416 mounted the the tray metal that the battery sits on, good luck eric j Share this post Link to post Share on other sites
Theroundhousernr 589 #19 Posted November 17, 2014 so possibly a safety switch???? There is a fuse right after the B+ terminal on the rectifier. Not sure where its located on the 416H off hand. Use your wiring diagram posted above. This is a main source of power going to the key switch. If everything is dead. Its a good place to start. Check how the seat switch was deleted. I just worked on a John Deere that someone just twisted the wires together and didn't ever take the time to wrap tape around them. If these wire contact the metal anywhere, You will surely melt stuff. Depending on where you tested for voltage at the starter , it will fool you. The heavy gauge wire that runs from the battery to the starter solenoid , if you test there, it will give you 12 volts every time. You want to test the signal wire from the key switch to the solenoid. But if no power is present at the key switch, there will surely be no power anywhere else. If it was me , I would be concerned of what caused the melted wires. Two things 1- would be a dead short to ground 2- high resistance in a component such as a fuse holder causing an excess amp draw to much for the wire to handle. Look for obvious signs of a short. I would start at the deleted seat switch. You can unhook the battery and test for a short to ground by using the ohm setting on your meter by back probing the wires. Be careful , things like lights are wired to ground and can cause an ohm reading of some degree and fool you. This will most likely only be successful if you are more experienced. Check resistance through the fuse holders with a good fuse in place. That's all I got for now. Take pictures of the burnt wires also and post Share this post Link to post Share on other sites
dstriker 2 #20 Posted November 17, 2014 ok will do. Share this post Link to post Share on other sites
dstriker 2 #21 Posted November 17, 2014 here is the pic of burnt wire Share this post Link to post Share on other sites
N3PUY 1,031 #22 Posted November 17, 2014 From the looks of the wire it is a poor connection. Replace that wire terminal. BUT that shouldn't have anything to do with starting. Share this post Link to post Share on other sites
dstriker 2 #23 Posted November 18, 2014 ok i will try everything you guys have mentioned if i cant figure this out does anybody know of anyone in north east ohio that knows what they are doing with these tractors that could help me in person or would work on it for me. thanks to everybody that has and will help i really appreciate it I am a younger guy but i absolutely love my tractor i had a cub zero turn before this and it didnt compare to the preformance of this tractor i wish i had half the knowledge of half you guys on here Share this post Link to post Share on other sites