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Author Topic: UXV 700I Overheated , now it will not start  (Read 763 times)

300winchester

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UXV 700I Overheated , now it will not start
« on: March 31, 2022, 02:12:52 PM »
Machine is my brother in laws, Im waiting to get blink code ?  Machine overheated, now it will not start,  seems like it trys but wont start.
im looking for a diagnostics tool ?
Im an electronics tech so with service manual i can troubleshoot.
any input greatly appreciated
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CROSSBOLT

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Re: UXV 700I Overheated , now it will not start
« Reply #1 on: March 31, 2022, 02:50:34 PM »
How do you know it overheated? What did it do when it overheated? How many hours/miles? What is coolant level in overflow jug and radiator? Can you smell antifreeze or see any leaks? What color is the antifreeze coolant?
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Karl

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300winchester

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Re: UXV 700I Overheated , now it will not start
« Reply #2 on: March 31, 2022, 08:26:29 PM »
jsut talked to brother in law,  code 21,  stutters to try to start, but he also stated lost all oil ?  once again im going to visit him soon, my background is very good in mechanics and electronics
thanks all
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300winchester

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Re: UXV 700I Overheated , now it will not start
« Reply #3 on: March 31, 2022, 09:56:29 PM »
He noticed right after it overheated oil was gone. Refilled and it’s been good since. Try’s to start but won’t. Says exhaust is warm ?
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CROSSBOLT

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Re: UXV 700I Overheated , now it will not start
« Reply #4 on: March 31, 2022, 10:08:24 PM »
We need a starting point in trying to trouble shoot by remote control. Please answer some questions:
In addition to the ones already asked, what indicated overheating? Then how did he determine it was out of oil?
What does it mean it has been "good since refilling with oil" but it won't start?
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Karl

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300winchester

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Re: UXV 700I Overheated , now it will not start
« Reply #5 on: March 31, 2022, 10:32:25 PM »
i guess first trip out to mail box radiator boiled over, came back to shop, found no oil in machine, refilled oil but fails to start, slight backfire when trying to start
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300winchester

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Re: UXV 700I Overheated , now it will not start
« Reply #6 on: March 31, 2022, 10:35:07 PM »
my brother in law 2 hours away, my experience with engines, well i have overhauled many car, truck engines, a 6 cyl diesel tractor engine, several snowmobile engines,  and ive been into electronics for 40 years, hope this helps and thank you all very much in advance for trying to help us out with this problem !
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300winchester

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Re: UXV 700I Overheated , now it will not start
« Reply #7 on: March 31, 2022, 10:37:02 PM »
Karl , I was in the Navy 1980 - 1984  San Diego,  USS Constellation and USS Bainbridge, Sonar (Ping Jockey )
thank you for your services
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CROSSBOLT

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Re: UXV 700I Overheated , now it will not start
« Reply #8 on: April 01, 2022, 01:02:58 AM »
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Karl

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Iahawk

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Re: UXV 700I Overheated , now it will not start
« Reply #9 on: April 01, 2022, 12:15:30 PM »
Quote from: 300winchester on March 31, 2022, 10:32:25 PM
i guess first trip out to mail box radiator boiled over, came back to shop, found no oil in machine, refilled oil but fails to start, slight backfire when trying to start

hmmm....I'm no engine expert, but this doesn't bode well for the machine..overheating plus no oil?  Was the machine new to him or has he had it for a while?
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souzamoto

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Re: UXV 700I Overheated , now it will not start
« Reply #10 on: April 01, 2022, 03:53:20 PM »
A compression check would be a good starting point. Take a look at the spark plug to see how roasted it is
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