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ZUMA DOCTOR REAL MECHANIC

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  1. ZUMA DOCTOR REAL MECHANIC

    2000 Xr80 part out

    Hi im interesting in few parts can you send me pictures please
  2. ZUMA DOCTOR REAL MECHANIC

    China pitbike rear shock on XR100 swinger.

    You can get the same shock on this website for less than 80 dollars with the shiping they also have with the same mount . So you dont have to mod you swing arm US $36.85 33%OFF | 1000LBS adjustable damping 280mm rear shocks absorber/suspension for 110/125/140/150/160cc KLX110 CRF50/70 Dirt Pit Bikes https://s.click.aliexpress.com/e/bs72l6TA
  3. ZUMA DOCTOR REAL MECHANIC

    Which one of this oil for my crf80 f

    Thanks alot
  4. ZUMA DOCTOR REAL MECHANIC

    Which one of this oil for my crf80 f

    Yes make sense. Thanks
  5. ZUMA DOCTOR REAL MECHANIC

    Which one of this oil for my crf80 f

    In asking for race on asphalt track . Here is some pics . Let me know what you recommended thanks
  6. ZUMA DOCTOR REAL MECHANIC

    All steel in the clutch basket i need answers

    Yes you Right i dont want my engine go bad thanks...
  7. ZUMA DOCTOR REAL MECHANIC

    All steel in the clutch basket i need answers

    Hi i have friend from Japan he send me a pic of steeal clutch set, they both the clutch disk and the clutch plate both made of steel . I translate the descriptions from the seller this is what it says (all-iron all-steel alloy clutch piece and follower piece heat treatment new modification) My question is what is the advantage to have all steel in the clutch basket ??? I will order them next week but i will not put them in until April.
  8. ZUMA DOCTOR REAL MECHANIC

    Time chain ratio

    Thanks alot i was worry about. Very helpful
  9. ZUMA DOCTOR REAL MECHANIC

    Time chain ratio

    Thanks in advance I have two questions here is the first im gonna use a xr75 cylinder bore out up to 57mm on crf80 Im gonna have to cut the timing chain the ratio 2 -1 will change ?? And im building a xr100 im gonna put 54mm stroke crankshaft with 58mm piston im going use longer timing chain and im going use 9mm spacer on the cylinder. The ratio 2-1 will change also ??
  10. ZUMA DOCTOR REAL MECHANIC

    Cam sprocket

    Thanks can you give me the link of frank web site please ???
  11. ZUMA DOCTOR REAL MECHANIC

    Cam sprocket

    Hi i have question the xr100 have 30 on cam 15 on crank and the xr80 28 on cam 14 on crank what happen if i swap them like put the 14 28 on the xr100 and the 15 30 on the xr 80 what is the reaction on the bikes ??? If can be done or not ???
  12. ZUMA DOCTOR REAL MECHANIC

    Project XR100 Retro Frankenbike!

    @gman255 nice bike. What tipe of weld you use for the electric conduit for the exaust ???? Also what tipe of pipe you use in the bottom of the frame ?
  13. ZUMA DOCTOR REAL MECHANIC

    Crf80 cheap mod

    Here is few pictures of the exhaust of my crf im sorry if the welding is not good im not a welder lol
  14. ZUMA DOCTOR REAL MECHANIC

    Crf80 clutch wont disengage

    I make work with the original crf80 . Thanks I make work with the original crf80 ajuster thanks
  15. ZUMA DOCTOR REAL MECHANIC

    Crf80 clutch wont disengage

    Do mean this
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