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  1. D

    wr250f conversion

    A Jackshaft is nice because it would move the drive sprocket closer to the swingarm pivot, will let you use factory sprockets and have a lot more options for gearing. I use a 11t front and a custom 60t rear and it still hits 130kph. The YZ250f thread has a very nice build with a jackshaft if...
  2. D

    wr250f conversion

    Ok, understood. I thought Id attached the info. I havent decoded all of the info yet, just the stuff I needed. And yes, the init packet over bluetooth is different. Donno why, I didnt dig that deep. I didnt work out wattage or current. Im probably right and its one of those sets of bytes but im...
  3. D

    wr250f conversion

    Hi Nike, I didnt decode the speedo output, I decoded the rs232 comms between the laptop and the controller. I believe most of what Ive decoded out of the data stream and how to start the data stream are a few pages back in this thread. You will need to be reasonably good at programming to do it...
  4. D

    wr250f conversion

    Im not 100% sure. Last time I had it at the drags I was running 11/60 gearing and it was topping out at about 134kph. I think I calculated that out to be around 5500-6000rpm. Motor is only rated up to 6000rpm. Your speeds arnt far off. I think personally im still a bit high geared. It makes...
  5. D

    wr250f conversion

    Your highway consumption will be dominated by drag at those speeds. Nice road tyres definitely make a difference too. I often joked with mates that building a lightweight faring would yield more road range then the equivalent weight in extra batteries ;). Riding behind another bike also...
  6. D

    wr250f conversion

    This is the converter Im using, https://www.aliexpress.com/item/1005002557625875.html?spm=a2g0o.order_list.order_list_main.81.464c18024wXoAd Haven't had any issues with it so far. Not sure what phA amps Im seeing, just going by feel. I just nudged both down and made sure the phA was slightly...
  7. D

    wr250f conversion

    Understood, right now I just use a DC-DC converter from the main packs, 100v down to 12v. I have the aux battery, just havent fit it. I only draw 30W on the 12v side so I dont really need a big battery. Went for a ride today and about 20min in I stopped and dropped the batt amps from 600 to 450...
  8. D

    wr250f conversion

    Well, technically its still registered, just unroadworthy. Ive taken it to an engineer and they just need to sign off on them here. There are some stupid rules though, things like orange wires for all battery pack wires, must have a contactor that opens when the key is turned off, must have a...
  9. D

    wr250f conversion

    Hi Mate, A qs180 and a 1081800 will make a DR650 scoot along nicely. Im happy with both the performance and quality of both in my particular case. Yes, a bit more flexability with settings would be nice. I think a lot of the rubber banding on these motors is just from pumping too much phase...
  10. D

    wr250f conversion

    definitely tried stomping on an invisible foot brake a few times. I think Ill move to having both on the bike. As you say the foot brake is great when you get tired. I did try and nip the clutch a few times ;). When I got home I checked the freeplay in the MC, it did seem to have a bit but Ive...
  11. D

    wr250f conversion

    Swapped from a foot brake to a left hand rear brake for todays ride. I both like it and dont like it. Went looking for the brake pedal a few times 🤣. One big drawback is muscle memory from using a clutch. Otherwise i adapted pretty quick to it. Does seem to have a problem though as i noted the...
  12. D

    Yamaha YZ250F

    Geez mate, take it easy out there. I crashed a few years back, dislocated my collar bone at the sternum and it never will be the same. As someone who has crashed and has disabilities from it please be careful out there. I also smacked my head pretty hard and that effected me for at least a yr...
  13. D

    wr250f conversion

    That video is 600A, though i doubt i was drawing 600A. I can capture some footage on the road. Bit pointless with the knobbies as they just spin but next time i have the road tyres on ill do it. Doug
  14. D

    wr250f conversion

    Went for another offroad ride yesterday. I turned my accel parameter down to 64 in sport mode and its works pretty well for me now. I can contain the rear wheel from exploding put of control now but still have enough pop for log hops and lofting the wheel at speed. Was pointed out to me that im...
  15. D

    Yamaha YZ250F

    A lot of bikes have Grease nipples on the suspension components, just not motorcross bikes. I guess with MX bikes it's assumed the bearings will be replaced before they need re-greasing. Sucks about your controller, was looking forward to hearing how it went. I've been running my fardriver with...
  16. D

    wr250f conversion

    I did notice that. Marketing out running the engineering side I believe. Still a cool bike and I probably would have got one instead of building my WR if they were available at the time. Still lack the ADR road compliance though. I'm tossing up if I should try implementing some rudimentary...
  17. D

    Yamaha YZ250F

    There are some pictures of the encoder in my thread if you want to look and see if it will fit. Sounds like Hackey hasnt fixed it yet if he keeps skipping on your support. Only reason to not help a customer. Your being too nice, get on every social media and tell everyone how crap his drive is...
  18. D

    wr250f conversion

    For a high quality unit look for an OEM assembly, thats why I went with the triumph assembly. Any bike with a ride by wire system will work. As a reference the Triumph one I got was ~120AUD second hand and they are dual Hall sensor but you only need to use one if you only need one. They will...
  19. D

    wr250f conversion

    I was talking to my brother about this the other day. If a pro rode my WR on an mx track I doubt it would do a 20min moto before going flat. I could be wrong but by the looks of it Stark also felt a 6kwh battery was required for pro MX. Here in WA our club mx events are generally only 5 laps or...
  20. D

    Yamaha YZ250F

    If you email Harry at QS motors he would probably sell you an encoder pcb to put into the motor. Just bolts in with 3 bolts. Following the new controller with interest. I dont mind the fardriver but there's definitely room for improvement. Doug
  21. D

    wr250f conversion

    Yes, that is the same as the Magura throttle I had. overall not a bad throttle if your building a dirt bike. My pot was a bit scratchy and caused a very annoying pulsing on the highway during cruise. They are not hall sensor, they are pots. Id say a hall sensor throttle is better but both work...
  22. D

    wr250f conversion

    Your going to need to have it reasonably loose. If you can get someone to help you by sitting on the bike and compressing the shock, the chain will go tight as you squish. Same as a regular bike. Your bike and motor mounts are different to mine so I cant really give you a measurement. You wont...
  23. D

    wr250f conversion

    I programmed up and tried implementing variable regen today. It sort of works but there are some limitations. I basically had my dash change the programmed back current while regen was active and it increases the current without issue but it doesnt really decrease it until either the brake...
  24. D

    wr250f conversion

    Took the bike out today, this time with knobbies. As a spur of the moment thing I had a crack at flipping some of the current limit settings. I maxed all the speed % ratios up to 5500 to 100%, then set 50% and 6000 and 5% for the rest. Then bumped the overall pha limit down to 1000A or double...
  25. D

    wr250f conversion

    no idea, i didnt datalog anything. It was a touch last minute and just wanted to have some fun. Settings were identical to my dyno runs for the most part so looking at those will tell you my pha amps.
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