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  1. DonCox

    Yet another CRF 250 Build but its my first so... ;)

    I don't understand the question #1. And I am running the ON/OFF switch in series with the B+ power cable and the new fuse will be in series also, before the ON/OFF switch. I would recommend a 400A fuse on the controller., I have pushed that much out of my controller, but I have never blown...
  2. DonCox

    Lithium King QS138 Rear Motor Mount

    The Lithium-king mounts are not sold as a plug and play. I have used them numerous times and they all are required to be adjusted to fit. Alignment of the sprocket to sprocket is most important. Once that is aligned, the spacers are needed to make it all solid. Then I would recommend to weld...
  3. DonCox

    Post Your ***STOCK*** Stark Varg Suspension Clicker Settings!

    Hello Paul. Are you enjoying the new Stark. Steve Agular got his new Stark also. Ron Shuler at ESR did some really good stuff on his suspension, give Steve a call or get in touch with Ron at ESR fuellerr@aol.com 760 9818802
  4. DonCox

    Yet another CRF 250 Build but its my first so... ;)

    Hey you made me think a little more about this. I am going to build a QS10 connector with a fuse in between the male a female connector, so it will just go in line with the battery output cable. Here is just a sketch of the idea.
  5. DonCox

    FTR Bartow Peace River Hare Scramble All Electric Class

    Boy, your a poor sport... They shortened the race from 5 laps to 4 so more could finish. Did you happen to notice that the leader of all laps was the XEMX1, even with a 10 second battery change every lap. We need to design a SuperCharger for the Stark battery. Real easy to do, the battery...
  6. DonCox

    Yet another CRF 250 Build but its my first so... ;)

    In lieu of a contactor to totally disconnect the battery from the bike, controller, system, we use this switch. I know that they are only rated up to 60V, but they have been very reliable in our application. I agree with you about an inline fuse very early on in the wiring, Maybe on the top of...
  7. DonCox

    FTR Bartow Peace River Hare Scramble All Electric Class

    From From what I was told is that the first Stark finisher was 11th #7B Thunder McHaffie, Shawn had the fastest lap times, I think you are right the 2 fastest Starks #214 and #38B only finished 2 laps, probably close to 3 laps. #38B was only 1 sec behind Shawn at the end of lap 2. All 3...
  8. DonCox

    FTR Bartow Peace River Hare Scramble All Electric Class

    I have a couple friends that got to Race this Hare Scrambles in an All Electric Class. I was not there, so this is just a collection of the info I got, so please correct things that I may have in error, but I am so proud of the DIY riders for there showing and excited in the fact that we, all...
  9. DonCox

    2023 Honda CRF250R with QS138 70H V3 Motor and EM260S Controller

    What are the dimensions of your battery, and what bike are you putting this in?
  10. DonCox

    2023 Honda CRF250R with QS138 70H V3 Motor and EM260S Controller

    Dave, I told you that Amorge can make almost any size, but there are some limitations. The width of 6.10" is maybe doable, send it off to Amorge, and they will let you know if the can and will give you a price. Usually they stack 2 rows of cells in that direction, so that is why I think why...
  11. DonCox

    2023 Honda CRF250R with QS138 70H V3 Motor and EM260S Controller

    You should be able to find newer YZ donor bikes, I have heard that the motors like to scatter themselves a little too often, and it isn't cheap to rebuild a motor that scatters. But Suzuki and Kawasaki provide a great base to build on, I just don't have any experience with them. Amorge can...
  12. DonCox

    2023 Honda CRF250R with QS138 70H V3 Motor and EM260S Controller

    Hey Eric, welcome to the Forum. I'll give you my 2 cents worth, and you may find other opinions. My two favorite bikes to build are the 2014-2018 YZF250F and YZ450F. This has plenty of space for the battery, and the suspension can be really refined. My second choice is a 2018-2022 KTM...
  13. DonCox

    Arenacross inntroduces X-Pro Class

    "The X-Pro class will feature a series of two heats leading to a final Kicker Audio Clash event, where the top riders on both ICE and electric bikes will go head-to-head."...
  14. DonCox

    Charging with Generator

    I posted this voltage converter, and did not dive deep enough into it at first. If you go to Amazon and search 120VAC to 240VAC Voltage converters, you will find a real variety. Price for 5000W for $96 to $189. They all seem to be the same basic unit. (You can determine by the weight the...
  15. DonCox

    Yet another CRF 250 Build but its my first so... ;)

    Yes building the battery is tough. You make mockups and it all fits, and the final product is always a little too tight. I am finding that Amorge can build to very exact specs for the outside dimensions of the battery box. They can tell you how many cells will fit, and they make a nice...
  16. DonCox

    2023 Honda CRF250R with QS138 70H V3 Motor and EM260S Controller

    Theo, The resistor is in parallel with the master on/off Switch. I use the switch instead of a relay. So when you plug in the battery to the bike with the switch off, the 1K resistor will fill the Capacitors in the controller, with no arc, in a few seconds. So from then on there are no arcs...
  17. DonCox

    Charging with Generator

    https://www.vevor.com/voltage-converter-transformer-c_12206/vevor-voltage-converter-transformer-5000w-heavy-duty-step-up-down-transformer-convert-from-110-volt-to-220-volt-and-from-220-volt-to-110-volt-with-us-outlet-eu-outlet-5v-usb-port-ce-certified-p_010563370236?adp=gmc&utm_source=google&utm_...
  18. DonCox

    2023 Honda CRF250R with QS138 70H V3 Motor and EM260S Controller

    Dave, this was a 2023 Honda CRF, and it came with a Titanium tank, and I just couldn't bare to cut it up. So I found this Carbon Fiber tank cover. You can see the battery comes all the way up The power switch on this one is for Dual battery system, but you can get both single and Dual battery...
  19. DonCox

    Yet another CRF 250 Build but its my first so... ;)

    Dave, I tried some battery combinations in the Honda bike I have here. Just some test fittings. If you go back above, and look at IMG6656, the side view of the Honda. you can see the space below the battery in front of the motor, I can fit a 6 cell by 8 cell pack in there. Then I made another...
  20. DonCox

    Yet another CRF 250 Build but its my first so... ;)

    Dave, A couple of ideas. The shape of the battery you proposed will be difficult to fit. Bob Casper in his CRF 250 build built 2 separate batteries. 20S6P x 2 for multiple reasons. One to fit in the CRF frame, two for the battery heat, and three for faster charging. Now there could be space...
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