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12-03-2017 01:09 AM  78 days agoPost 1
R38133

rrKey Veteran

USA

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I purchased a used KOBY 90 for a rebuild of a trex 500 went with a scorpion motor 1600KV and a 11T pinion running a mini V bar and a DX7 at normal end points when I get above 45% throttle it is at WOT have to set stunt 1 at 35% to get it to slow down I have a Kontronik program card but it seems not to recognize it NO lights on the card this does not seem correct could someone please give me something to try

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12-03-2017 01:38 AM  78 days agoPost 2
Dr.Ben

rrMaster

Richmond, VA, USA

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Go back with a linear 0 to 100 throttle curve with default end points and put the Koby into another mode besides mode 4. Then put it back into mode 4. Something was misconfigured in set up because it should hit 100% rpm when your throttle curve is at 80%. Remember a Kontronik governor does not show true rpm and behave as expected without blades attached.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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12-03-2017 01:47 AM  78 days agoPost 3
R38133

rrKey Veteran

USA

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How do I change modes?? the program card I have does not seem to work on this ESC it works on my other KON ESC's but they are not KOBY

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12-03-2017 07:19 AM  78 days agoPost 4
R38133

rrKey Veteran

USA

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OK I got it I guess I was stuck on stupid tomorrow I'll take it outside with the tachometer and compare with the math and check the BEC voltage
Thanks DR.Ben

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12-03-2017 02:04 PM  77 days agoPost 5
Dr.Ben

rrMaster

Richmond, VA, USA

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Remember: Check only with a full pack and don't unplug and plug it back in at less than full charge or you'll get an erroneously low head speed. The Koby uses the highest initial pack voltage as the basis for RPM for the whole flight.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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