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HomeRC & Power✈️Aircraft🚁Helicoptere-Electric Motors-Controllers-ESCESC › Koby 55lv just burnt up my motor and itself
04-06-2013 01:32 AM  6 years ago
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soberflierross

rrApprentice

Cottage Grove, MN USA

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Koby 55lv just burnt up my motor and itself
Just installed the koby 55lv in my warp with the scorpion motor that was 5 flights old and worked great.

Programmed the koby mode 1 and 4 went to spool it up and the motor goes up in flames and the esc has a burn mark in it. The rest of the electronics are fine so did I do something wrong I've been using kontroniks for years without fires
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04-06-2013 01:42 AM  6 years ago
soberflierross

rrApprentice

Cottage Grove, MN USA

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Motor was the scorpion 2520-1360kv

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04-06-2013 10:31 AM  6 years ago
Richardmid1

rrProfessor

Leeds, England

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Short in the motor maybe? Mounting bolts too long and touching the windings?

A friend of mine had a koby 90lv go up in flames in a 550, after an email or two later with kontronik they basically concluded that it just didn't like the motor it was running which was a Viper.

60% of the time, it works every time!
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04-06-2013 05:40 PM  6 years ago
soberflierross

rrApprentice

Cottage Grove, MN USA

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motor bolts were the correct ones not too long, I ran this motor with my yge for 5 flights with no fires
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04-06-2013 05:47 PM  6 years ago
seldred

rrVeteran

Newnan, GA

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I had the same problem with that motor and the koby 55. I contacted kontronik and it is a known problem. For some reason, has to do with switching frequency of the ESC, the Koby is not running well with these 6s set ups. The best route to go on your warp is the YGE 40. I installed two different Koby 55 esc and had issues with one catching fire and the other shutting itself down above 40% throttle and getting very hot. I also tried to run it on the scorpion 1360kv motor and the stock compass. No issues with the YGE so far.

Sorry to see you had some trouble with your set up as well
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