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  1. R

    what size nut on mac 12t

    thanks Ill look into that or do a search online the 1.50 is the twist I think, most metric pitches in our hardware stores is 1.25.
  2. R

    what size nut on mac 12t

    Hi, I hope this is not a dumb question. I ordered a mac 12t motor on advice from this forum and laced it to a 26 inch fat tire rim. The drop outs on the front fork are so wide there is a huge gap between the motor face and the fork. I currently have a stack of washers in there and it seems to...
  3. R

    help identifying lyen controller wires

    Hi all, To make a long story short. I disconnected my lyen controller and lost the lables. Can some one tell me if my lables on the pic are correct? I am only concerned I dont get the red wires from the hall sensor and the red fro the throttle switched. Thanks!
  4. R

    help trouble shooting 8fun motor and lyen controller

    Hi, and thank you for your input I wired the controller in the following way MOtor controller thick blue thick yello thick green thick green thick yello thick blue\...
  5. R

    help trouble shooting 8fun motor and lyen controller

    i tested the wires on the motor and spun the hub I get about .25 volts from the leads. I did open the lyen controller, but my electronic back ground is weak. I didnt see anything burnt, just the smell test. thanks
  6. R

    help trouble shooting 8fun motor and lyen controller

    I do have hall sensor wires. Ill test the three fat wire leads today, How do I test the hall wires? I'm not 100% sure the lyen controller was burnt but the stock one Im pretty sure. It was filled with a black silicone type solid goo, Im assuming to waterproof it. When I initially hooked up...
  7. R

    help trouble shooting 8fun motor and lyen controller

    Hi, I hope someone can help me as I am stuck. I have a 350w 8fun motor with the stock controller Im assuming this is the same as a bafung motor and controller. It is running 36v 8amps from a bottle battery. Everything was working fine when it suddenly stopped working. I took off the controller...
  8. R

    GNG how fast is yours ????

    My friend followed me down a hill I hit 44, probably could have gone faster but it was pretty scary. On a flat area 28 mph. Giant ds2 warp gng II. 450w motor 12s 10amp. no peddling.
  9. R

    throttle replacement wires

    Thanks for the quick response! I'll get to wiring it tonight. Thanks again, Yes three wires, just a replacement for my crappy china one that came with the GNG.
  10. R

    throttle replacement wires

    Hi, I got a new twist 3 wire throttle. Will I damage my controller batteries etc, if I hook up the wires wrong? Or will it just not work. If it wont damage anything I'll just go trial and error, if it does what voltages should the three wires from the controller be? I read 5v somewhere but am...
  11. R

    help with new freewheel and chainring

    Hi, I've been enjoying my gng 2 450w set up on my bike so much I think I am breaking the freewheel and chainring. While doing maintenance I noticed I can wiggle the whole chainring from side to side. Everything seems tight so I'm assuming its wearing out. I read through the pages of gng...
  12. R

    adding lipos for more capacity

    Thanks guys, Luckily my charger does 12s so I'll just keep the original 4 together and add another 12s in parallel. Thanks again and Happy Thanksgiving!
  13. R

    adding lipos for more capacity

    Hi, Thank you first for all the great advice. My current battery setup is 4 6s1p 5000mah wired in series then parallel. 10amps 48v Can I add 2 more lipo packs in parallel if the voltage is the same BUT the mah is lower? IE 3000mah for each new pack. I have some room in my battery box and would...
  14. R

    fat sand bike conversion

    Thanks for the suggestions, Now my bottle battery that came stock with the fatsandbike when dead. I'm going to try and get a new hub motor and controller. Thanks!
  15. R

    fat sand bike conversion

    Hi, I hope someone can give me some advice. I finished my gng 450 mid dirve on a giant fs and love it! I miss riding on the soft sands here though. I am thinking of starting another project on my current fat bike. Its a fat sand bike e monster with a 500w fun8 motor. Fatsandbikes.com. The front...
  16. R

    Your Creation's Before & After Pics

    I started with a used giant warp frame and put on a 450 brushless gng mid mount. It works fine so far. I've only gone about 100 miles on it over 3 weeks or so and about 5 miles of trails. Thank you very much for the support from this forum esp dogman, wes, and others who answered my posts...
  17. R

    Thunder 1220 and power supply question

    thanks for the replies, when I first power on the tunder 1220 it cycles through the wattage and it starts at 500w, this is the value I should change to 300? or even 250? ecross, thanks for the measurements. Thanks Can someone suggest a brand or model of power supply to get that will maximize my...
  18. R

    Thunder 1220 and power supply question

    Hi, I have a thunder 1220 12s charger running off a radio shack 13.8v 25 amp power supply. The power supply is probably about 7-8 years old but works fine. Do I have a limit on charging amps to my 12s 10000mah battery? I was charging at 5 amps and it seemed fine, I'd like to take it to 10 amps...
  19. R

    Put back 1.26 amps what does this mean?

    Thank you Dogman, thats the kind of critical thinking answer I was hoping for. I really want to thank you and all board members who contribute to this forum. It's a wonderful wealth of information. I hope in the future I may be able to contribute and not just ask questions. Mahalo,
  20. R

    Put back 1.26 amps what does this mean?

    Hi, Hope this isn't a dumb question. I took my bike out this afternoon 1.5 mile up hill muddy trail. Rode about 20 min up then back down. I took apart my 4 6s packs running 50.1 volts fully charges 6s2p. Each battery took 1.26 amps when I recharged them, about 24 minutes, final voltage was 25...
  21. R

    Lipo charging and balancing help

    Good grief you are right mark, I don't know what I was thinking! If I charge packs 1and2 only I would use both balance ports. Hopefully I would have caught that when I actually whet and tried it. Thank you!
  22. R

    Lipo charging and balancing help

    Thanks Mark, When the bike will be fully running will all batteries it will have (4) 6s batts two in series then the two 44v packs in parallel. I will have a Y connector from the two packs to the controller. My new plan is to remove Y connector thus having two seperate packs of 44v each. I...
  23. R

    Lipo charging and balancing help

    Thank you dogman and all who are helping me with this project. I took a test ride last night! just around the driveway. I am thrilled to say it works pretty good. I need to do some bike adjusting, but gng system seems to be working! Last night I just ran one 12s 5amp pack. here are my two...
  24. R

    Lipo charging and balancing help

    mark5, you are right wesnewells diagram looks to be the balance plugs in parallel from batterys 2 and 4 and 1 and 3. so.... I would connect the harness I'm going to buy to batteries 1 and 3 and 2 and 4 then connect to respective balance ports? I'll take a pic tonight and post just to make...
  25. R

    Lipo charging and balancing help

    thank you guys, yes I was thinking about paralleling ALL balancing leads from the 4 batteries, but after looking at a picture of the charger I know thats not right. Thanks for the heads up, sparks in my hand is what Im trying to avoid. this harness...
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