I got the kit and installed it. No instructions.The motor wont start. There was one black wire remaining from the ESC pcb what is it for?
1672630
hi; The kit comes w/ no instructions. This what I did. Go online..google "mjx brushless kit". One of the search results will be from www.yousky7.com/mjx. Click on that one. On the web site there will a ad for the mjx Brushless upgrade and below that it will say "click here for details". Click there and go thru the details and it will lead to the Installation Instructions(they are even color illustrated). This should resolve your questions. Take your time.
1672631
the black jumper is part of the power system (-), you must complete the ckt. from the ESC to PCB
1672632
One red and one black wire come from the old motor connector to the esc board. There is another black one (in the middle if those two on mine) that gets soldered to the PCB board. Locate the red and black wires that come from the power connector (from the battery) to the pcb board. The black wire from the esc gets soldered to the longer silver strip to the left of the black wire if the board is belly up. That is how mine is set up.
1424712
You need to connect that black wire to the bottom of the original pcb board, battery ground. You need both pcb board.
2068508
the flight time could possibly overheat the motors if you run them at close to full power for a long time. The motor should have a rating on it showing how much voltage and amps it draws, i would be more worried about your esc. But i would imagine that you should be fine because it is only a two cell.
2249137
I know I am late with this but was not around my comp. I don't know if you accualy checked the voltage at the motor but if the motor is a few years old they will cease up and you can use wd-40 to free it. If it is free and the key is on when testing then u have a problem.
1716343
I have never seen instructions, but do have the parts breakdown scanned. I could email it to you as a PDF if you have an address you are comfortable sharing.
1237741
I wanna say check wire diagram , look for wire labeled "park" (or similar). I will look into this issue for ya, if not resolved already.
1184482
To: Terry PikeWhen I built mine I did all the lighting and the Bussard motors myself. I just got a couple of HO train electric motors (which were about $12.00 each) and wired them to a small voltage regulator. I run the motors on about 4 to 4.5 volts to get the correct speed. The motors themselves are about 2 inches long and about 3/4 of an inch in diameter, so they fit nicely into the front of the nacelles. I left the whole Bussard assembly loose so that I can take it out and make repairs if necessary. The way the ring assembly snaps into place with the three supports on the bottom of the nacelle makes this easy to do.Hope this is helpful to you. To: Terry PikeWhen I built mine I did all the lighting and the Bussard motors myself. I just got a couple of HO train electric motors (which were about $12.00 each) and wired them to a small voltage regulator. I run the motors on about 4 to 4.5 volts to get the correct speed. The motors themselves are about 2 inches long and about 3/4 of an inch in diameter, so they fit nicely into the front of the nacelles. I left the whole Bussard assembly loose so that I can take it out and make repairs if necessary. The way the ring assembly snaps into place with the three supports on the... » Read More To: Terry PikeWhen I built mine I did all the lighting and the Bussard motors myself. I just got a couple of HO train electric motors (which were about $12.00 each) and wired them to a small voltage regulator. I run the motors on about 4 to 4.5 volts to get the correct speed. The motors themselves are about 2 inches long and about 3/4 of an inch in diameter, so they fit nicely into the front of the nacelles. I left the whole Bussard assembly loose so that I can take it out and make repairs if necessary. The way the ring assembly snaps into place with the three supports on the bottom of the nacelle makes this easy to do.Hope this is helpful to you. « Show Less
1410075
Sorry, I didn't post my entire results. I ended up replacing the DC motor for the bike twice. The second time was a charm. I now have two good control panels. I would recommend requesting the DC motor. It is not easy to replace, and there are no instructions included with it. I spent a bit of time fiddling with it to make the resistance appropriate.
2151011
Check to make sure the battery is in correctly, if it is, send the kit back. It is probably bad. "No user serviceable parts.
2014546
Check your settings on your radio(throttle trim, steering trim, etc.) . Make sure they are all in the neutral position. Turn your radio on. Turn your esc on. It should arm and solve the problem. If it doesn't then either your motor leads are backward or your esc is one of the really cheap ones that for some reason runs backward unless you swap the motor leads, which will cause the same problem.
1131697
this may help. hoes maybe to short.just a guess. ck the volts to much power will make the motor run faster. if any of THESE will not work send it back. thanks
1359113
probably* its a generic kit that will work on a huge number of models. i used Repair Clinic to find the part numbers (using the model number of the machine) for what i was looking for and copied and pasted into amazon and this product came up. i was able to use everything but the idler arm, so i just swapped the idler pulleys. try googling the model number too.
2164872
It's stupid.. Was there a resistor in your original unit (there was in mine). If so, you have to solder it in series with the wire that goes from one side of the unit to the other. Just look at the wiring diagram. Since I can't open mine and don't have the instructions, you just have to follow the diagram. Sorry I can't help more.
838839
In my situation mine only had 3 also originally, what to do with that 4th brown/white striped wire that is supposed to go to the capacitor? Here is a link to a video https://www.youtube.com/watch?v=9cZkzOOzCg8 that explains it very well. Hope this helps, I just bought this motor and installed and running great as we speak
1636823
If its brand new return it. Because its most likely the pcb board. I have a few Wltoys V911's and after a crash with one , the tail motor kept spinning no matter what, even soon as you plugged in the battery. I had to replace the circuit board. You can't repair the circuit boards. I have a couple of the F3's, and they are awsome copters. Bilt better then the v911 but. Slower.
458215
I did that to an older motor and it fixed it. I think I would try it first before spending the money on a motor.
2230469
You do need the following, A soldering or heat shrink to connect the esc to the batteryYou need a usb programer, if u want an easy way to program the esc without have to use the manual wayIf your upgrading from brushed to brushless, you gonna need to change pinion gear and spur gear to different size. Otherwise the esc will get hot and u have to wait for it to cool down.Lastly u need some type connector between esc and battery, i recommend ec5 connector for better performance
1556336
That one stumped me too. Nothing in the instructions, although they do mention 12 VDC for that wire somewhere in a diagram. The instructions were horrible, and the thing never powered on. I returned it and got a refund. My suggestion is you do the same.