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CelticDude

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About CelticDude

  • Rank
    TT Silver Member

Profile Information

  • Gender
    Male
  • Location
    California
  • Interests
    2016 TM 125 Enduro, 2002 KTM LC4-640, 1975 Bultaco Alpina 250, 1976 Hodaka Combat Wombat engine in a 1971 Rickman frame, 1979 Bultaco 370 Pursang MK11, 1983 Honda XR200R

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  1. CelticDude

    TM 144en ride reports and reviews needed

    I don't have a TM144 but I have a TM125 Enduro and it works great on single track trails. I did change the stock fork springs to softer than stock for riding through rocky sections. The bottom end power is more like a KDX200. The ignition curve switch on the handlebar allows you to go from more aggressive on position 1 to a softer transition on position 2. The quality of the bike is amazing. I get 80+ hours out of a piston. So much fun to ride!
  2. I bought a 1989 CR250R brand new. The first year for upside down forks. The bike was awesome but the forks were crap. I would go for 1987 - 1988.
  3. Never really cared for CV carbs like the stock one on my LC4-640. Had it apart several times and installed a JD Jetting kit but finally decided to replace it. I have had good results with a Keihin CR Flat slide carb with accelerator pump in the past but that one and the FCR-41 were pretty expensive. I found a Mikuni TM flat slide carb for a greatly reduced price: https://www.ebay.com/itm/312245599350?_sp=p2488211.m41214.l9765&_trkparms=itemid%3A312245599350 Installation is a breeze. The main jet was the same type and was a 165. I swapped it for a 155 from my carb. The pilot jet is completely different but the hole in it looked to be a similar diameter so I went with that. It came with a short choke cable but I was able to use my stock one. The best thing on installation is to mount the carb first without any cables. It uses the stock throttle cables but the upper mount was threaded so I drilled it out. All of the external adjustments are much better from the idle speed to the idle mixture screw. The engine fired right up and once it warmed up I backed off the choke and adjusted the idle speed. The bike runs so much better than stock and will actually wheelie easily in the first three gears.
  4. CelticDude

    XRs Only Exhaust for 1983 XR200R

    Yes. It's for the '86 and newer.
  5. CelticDude

    Honda XR200R Hydraulic Clutch

    I have a pretty strong clutch hand as I have a couple of Bultacos in my garage. When I bought the 1983 XR200R a while back I was surprised at how much strength it took to pull in the clutch. Ordered a new cable and lubed every thing up but it was still kinda stiff. I ordered a hydraulic clutch on E-Bay a while back for a pit bike and it works pretty good. Now I can pull in the clutch with one finger. I used the stock lower cable mount and modified it by drilling a new mounting hole about an inch in the bracket from the stock one and used a closer case bolt to mount it. Then I cut off the excess from the bracket and ground off a bit for the lock nut. All for a little work and about $25.00! https://www.ebay.com/itm/252763630673 Yeah, I will have to insulate it as it is a bit close to the exhaust.
  6. CelticDude

    XRs Only Exhaust for 1983 XR200R

    Fired it up this morning and it sounded great but was much quieter than the Supertrapp!
  7. CelticDude

    TM Fork Springs

    Thanks for your advice, much appreciated.
  8. CelticDude

    TM Fork Springs

  9. CelticDude

    TM Fork Springs

    Here we go. With the 0.38KG/CM 455 mm length springs: Assembled length - 870mm Free Length- 882mm Preload- 12mm 0.43KG/CM 470 mm length springs: Assembled length - 895mm Free Length- 904mm Preload- 9mm Both sides were very close to the same measurement.
  10. CelticDude

    XRs Only Exhaust for 1983 XR200R

    The XRs Only headpipe fits perfect. I also bought an FMF Powercore 4 muffler and it was fairly easy to adapt it. The headpipe was slightly larger but I cut the end off of the stock headpipe and it had a ring that fit perfectly. I left about 2" of the pipe that slipped into the end and helped seal off the FMF pipe. I also cut slots in the end of the new headpipe so that the clamp would make the pipe seal on the FMF side. I had to use the side cover mount for the muffler with an adapter washer that reduced it from 8mm to 6mm. The lower bracket I modified by heating it with a torch and bending it to fit the frame bracket. Too late tonight but I will fire it up tomorrow!
  11. CelticDude

    TM Fork Springs

    That is a great explanation. Makes perfect sense. I will also be able to swap out both springs to check the preload. I will let you know what I find. Thanks!
  12. CelticDude

    XR200R Seat Cover Recommendations

    I bought a black one from the same vendor and found it was good quality and it went on pretty easy. https://www.ebay.com/itm/HONDA-XR200R-XR-200R-1981-TO-1983-MODEL-SEAT-COVER-H192-n9/253161687487?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
  13. CelticDude

    TM Fork Springs

    It sounds like you know a lot about setting up these forks! I do not. Let me know how to measure the preload. I would appreciate that. About how much race sag should I have on the front forks? I'm running about 3 1/2" on the rear shock.
  14. CelticDude

    TM Fork Springs

    Thanks for the input! There is still plenty of preload and you can tell that by how much force it takes to reassemble the forks. Yeah, the 0.38 springs are probably too light but I was looking for a change. I had no idea that there was so much difference in spring length. The springs in the TM were installed by the factory since I bought the bike brand new. The only reason I know the length of the springs is because I measured them. I had even gone down to 300ccs of 2.5 weight oil in the outer chamber but now I know that compression damping is not the problem. I'm going to go back to 350ccs of 5 weight oil and I will more than likely have to go to a heavier spring rate. At least now I understand what the problem was and what direction to go.
  15. CelticDude

    TM Fork Springs

    I've got a 2016 TM125 Enduro. I've not been happy with the action of the front end especially in rocky areas on the trails. On whoops and jumps the action is fine but in rocky areas on the trail the front end bounces in the air and makes it difficult to steer. I don't have a manual and the newest one I can find online is 2015. I had the forks revalved but didn't make much difference. I contacted the importer and he sent me some documents in Italian but basically I found out the springs were 0.43 KG/CM which is the same as the Yamaha YZ125. I decided I wanted to try some lighter springs so I went to the RaceTech site and the only TM125 springs were for the 2000 model. I looked up the Yamaha YZ125 springs for 2016 since they are the same KYB forks and ordered a set of lighter 0.38 KG/CM springs. I took my forks apart and found that the springs were 470mm in length. The Yamaha springs were 445mm in length! That's 0.98 inches or almost an inch shorter. That is a huge amount of difference of preload on the fork springs! I put the shorter YZ125 springs in and took it for a ride today and the difference is amazing! I can now blast through rocky sections without any bouncing or deflection at all. Not sure if this applicable to other models.
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