Jump to content

miner

Members
  • Posts

    214
  • Joined

  • Last visited

Contact Information
 
   
Recent Profile Visitors
 
 

The recent visitors block is disabled and is not being shown to other users.

 
  1. miner

    Chassis Part ID

    Mystery solved - if anyone else is stuck for 02-08 (I think… mine is 07) the part number is: BT280710959 John Shirt Motorcycles to the rescue. 🙏
  2. miner

    Chassis Part ID

    Aye… was eyeing up some gaffer tape round the indents in the bottom yoke in the interim if required to do a test ride. Not a faint clack just turning the empty yoke by hand though… best fixing.
  3. miner

    Chassis Part ID

    Looks like with some modification it may fit still… if you slide the clip into the centre, you’d only need to drill half a hole to get it to seat. Not drilling into the remaining ligament will be very tight though. I’ll try sending these additional pics to Trials UK first before I order and drill… will keep you posted. https://imgur.com/gallery/X5DdPLg
  4. miner

    Chassis Part ID

    Cheers Faussy… that’s exactly what it is… but I’ll be fecked if I can find it and the 09> one is inconveniently perforated in the centre. 😬 A quick flick of the yoke reveals it will be missed… epoxying it onto a bit of aluminium looking appealing right now. 😅
  5. miner

    Chassis Part ID

    Imgur working again now… https://imgur.com/gallery/PCrkpHN
  6. miner

    Chassis Part ID

    Hi - this disintegrated whilst rebuilding the bike… any idea which part / part number it is? I can’t see/find it in the parts book. 🫠 07 TXT Pro 250. Can’t add or link it at the moment… it’s a plastic part that’s right under the headstock and the tabs come round the frame.
  7. The main bearings were ok, just swapped out the gearbox bearings as a couple of them were grumbly.
  8. Cool. Checked the 300 KTM manual for comparison, just says to fully butt it up before putting the other case on.
  9. Is there an end float dimension/spec for the crank when refitted the casings? Doing ok with the exploded parts diagrams and mechanical nous… but want to check this one before I pull the crank and bolt it back up.
  10. Aye. Tribology (mating faces and lubrication) is a science on its own, a deep rabbit hole to go down. 😵🤯🤓
  11. Quick google brought this up… covers it well. Torque values are not compatible but it’s not just about that, it’s also about loading area and retention of lubrication. https://www.gordonrussell.com/articles-3-the-differences-between-planetary-and-spur-gear-motors This one covers gearbox types very well. https://granvilleoil.com/news?artID=9#:~:text=The most obvious answer to,fluid is for automatic transmissions. There’s also the specifics of the oil itself and it’s shear resistance which leads to reduction in viscosity over time under load. https://www.marinelink.com/news/analysis-oils-what353514 For a trials engine’s torque output, its maybe ok depending on the fluid used… but if it was meant to be used with ATF the engineers would’ve specified it instead of 10w-40 (or equivalent). Being an engineer I’m going to side with them. Also got sick of dumping silver oil out my old KTM when running ATF in it. Might be ok but it’s a no from me based on the above. 🤓🍻
  12. Went out yesterday to get two 25x1.5 o-rings, 35x45x12 needle bearing, 12x20x5 oil seal and 10w-40 semi synthetic oil... came back two hours later demented with two o-rings and ordered the rest on desert cart. Ordered two quarts of Lucas 10w-40 semi synthetic. Suitable grade hydraulic oil not a bad shout. I don't like ATF as its not intended for pinion geared boxes... BuT bUsEs uSE ATf AnD tHey'Re MAssIvE!! They sure are AND full of clutches... but people on the internet don't understand anything about the difference between pinion and planetary gear sets loading. 🤓 Might be OK... but its not for me. Would prefer a light hydraulic oil. 😁
  13. As above… cases are split to do the gearbox bearings and replace the o-rings in the gearbox crank seal side (all good, just worn o-rings appear to be the source of burning gear oil). Anything particular to watch out for when reassembling? Never done it but between the KTM manuals and the Jim Snell videos, should be able to figure it out. Any pointers welcome.
  14. Cheers guys… I’m not a big fan of ATF… but I do have a surplus of Mercon V & LV to hand. 😅 Semi-synthetic becoming old hat nowadays, most things are synthetic now. I switched to fully synthetic in my CBR600 and the clutch was toast 1000 miles later… it was ~26k miles old by then, subjected to track days and super sticky track rubber in that 1000 miles though. Clutch springs also 0.3mm off the sacked out limit. I could be being a little paranoid about semi > synthetic. 😅 Not the switch from mineral oil it once was on the motors.
  15. Cheers Zippy, that’s spot on. Might just being paranoid… best to get the tyre off and check. 🤞🤪😅
×
  • Create New...