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post #1 of 30 Old 09-10-2018, 09:04 PM Thread Starter
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Free Gator troubleshooting.

I picked up a 1999 4x6 gator that someone was giving away. It isn't running and has 3300 hrs on it. I'm trying to diagnose it. It turns over normally. When I turn the key to on position, I dont hear or feel the pump running. Putting a DC multimeter to the terminals, I have continuity when motor is off. When key in on position, reads fraction of a volt. I dont see fuses anywhere.

Yeah, I know nothing of working on engines and I'm flying without a manual. Any guidance is appreciated.
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post #2 of 30 Old 09-12-2018, 10:19 AM
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Turn on your private messages please.

2000 Gator 4x2
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post #3 of 30 Old 09-13-2018, 08:50 AM
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Originally Posted by Tsilatipac View Post
........I'm flying without a manual. Any guidance is appreciated.


Here is a link to a OEM Technical Service Manual on CD. These are invaluable to any Gator Owner.

https://rover.ebay.com/rover/0/0/0?m...2F123360156066

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post #4 of 30 Old 09-13-2018, 02:00 PM Thread Starter
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Turn on your private messages please.
Done.
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post #5 of 30 Old 09-14-2018, 10:06 PM Thread Starter
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Ok. Key on, no power to fuel pump. Engine appears to turn over normally. I put 12v to fuel pump and it runs and moves fuel. I checked front cylinder pressure--about 165 psi. Looked like no spark.

If I'm correct, what would let the engine turn over normally but no power to pump or plugs? Hydraulic dump works, dash lights work, lights work.
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post #6 of 30 Old 09-15-2018, 11:29 AM
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PM sent. and paging @ื˜ื™ื ื™ืจื•ืฉืœืžื™

have you tried removing the ignition switch and cleaning / checking all the contacts and its ground? Or replacing the switch all together? pretty much all the gator electrical is put through that thing. sounds like the fuel pump is working its just not coming on when you turn the switch on.

2000 Gator 4x2

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post #7 of 30 Old 09-17-2018, 09:13 AM
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Ok as a mechanic let me first say:
I have no clue at where to direct you, as this could be anything.

That being said there's a few things to check:
-Fuses, should be under the hood check them with a multimeter and not by eye
-Loose wires
-Shorted wires
-Wire messes tidy up aftermarket cable installations
-battery

All in all just make sure everything makes sense and everything is working.

If that's all in order report back and well check what's wrong.
Is it diesel or gas?
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post #8 of 30 Old 09-17-2018, 09:24 AM
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Also to add, these old buggers seem to have some hiccups sometimes so thats why we first check what we have and what we can work with.

It's hard to diagnose this since it sounds like there might be more than one problem.
That being said it should be easy enough to fix once you made sure it's not something silly like a fuse (been there) or a burnt wire.

Do please also check any safety switches like the neutral switch.
After you made sure everything is in its place take the plus from the battery and follow it everywhere to the switch to the relays etc etc

Just last week I had 2 Ferris zero turns that had the same issue.
One had a broken switch wire and one a shorted battery
This is why it's so important to make sure that it's all ok because it can be something really simple you missed.

After that you'll just play a game of elimination to make sure all components are working

Again not much help but there's little I can say besides if it's an electrical problem it should be an easy fix albeit a long one
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post #9 of 30 Old 09-18-2018, 10:59 PM Thread Starter
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Victory!!

I vacuumed out a few pounds of mulch and saw a broken wire to to the neutral safety switch and a chafed wire to the radiator fan. I jumped the neutral safety switch with test wire and it fired right up on the first try. Amazing, a free gator for one broken wire. Time to clean it up and make it pretty.
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post #10 of 30 Old 09-19-2018, 12:29 AM
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Congrats, figured something like that.

If you need any help in the future just ask
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post #11 of 30 Old 09-19-2018, 11:26 PM Thread Starter
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Took it off of the jack stands and tried to take it for a drive. It idles fine but shakes like the devil once you start moving. Haven’t started to look at it yet. Couldn’t tell if it was the engine or transmission area in the dark.
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post #12 of 30 Old 09-20-2018, 02:29 AM
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Put it in neutral and just rev it up and down if it isn't there it's more likely something like wheels or bearings.

Of course I forgot that it could also be the belt slipping due to the vario or a worn belt
Since its been sitting a while it might be a good shot to just clean the varios with a pressure washer.
You can spray a bit of wd40 in the vario just not on the surface the belt rides on

Last edited by ื˜ื™ื ื™ืจื•ืฉืœืžื™; 09-20-2018 at 08:48 AM.
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post #13 of 30 Old 09-20-2018, 10:47 AM
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Took it off of the jack stands and tried to take it for a drive. It idles fine but shakes like the devil once you start moving. Haven’t started to look at it yet. Couldn’t tell if it was the engine or transmission area in the dark.


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post #14 of 30 Old 09-25-2018, 11:46 PM Thread Starter
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I took a video of the engine running. Any idea what to look at next?

https://youtu.be/qAMIJZ2m-kA

Thanks,
Carl
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post #15 of 30 Old 09-26-2018, 12:31 PM
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I took a video of the engine running. Any idea what to look at next?

https://youtu.be/qAMIJZ2m-kA

Thanks,
Carl
That's rough alright.
I notice 2. things maybe 3.

1. engine might needs a tune up.. check valve clearance clean carb etc
Valves are 0.004 intake and 0.006 exhaust
Won't hurt in any case.
2. The belt seems a bit sloppy, this might be due to the way the video works but it won't hurt to check the number on the belt if it's still there

Something isn't adding up
it could also be a misfire or one cylinder not working properly.
You can take one of the plug leads off when idling to hear if one runs better than the other.
!use an insulated plier to do this!

Again start with a tune up and also check the gas tank for dirt, throw away old gas etc etc

Good luck
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