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About bumtarder

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  1. 1/4 to 3/4 throttle mostly.Main jet is for 3/4 to wide open throttle and the pilot circuit up to 1/8 throttle but there is overlap between the circuits.With the stock Mikuni cv carburetor be very careful with the slide diaphram and spring,to place it correctly and not kink it or mishandle it in any way.
  2. Go back to what you had here with the 160 main jet and whatever pilot jet you used and fuel screw with number of turns and red4 then red 5 then try blue 2,3 etc.Keep careful notes and only change ONE thing at a time.You will get it.Don't give up and have patience.
  3. Drz clutches very rarely go bad for the average rider as they are very robust.In over 40,000 miles of riding I've only had to replace the pressure plate springs. Check the free length and compare to the limits in the service manual.
  4. too small. Go to americanmototire.They have the best prices and include super fast shipping.Enter your size and then see all the selections that come up.I'm sure you'll find exactly what you're looking for. https://www.americanmototire.com/dirt-bike-offroad/sedona-mx880st-120-90-18-rear-soft-intermediate-terrain-mx1209018st-mc.html
  5. Well, the fork tubes is not the frame.You need to secure the bike by the frame,one wheel and preferably a ground anchor,telephone pole or the trailer hitch of a vehicle or something like that.Also have the lock suspended so to make it difficult to saw through as much as possible. If you bend down and take a knee there is a triangular opening on each side of the frame on a drz,right under the footpeg.That is a good place to run a chain or heavy cable through.
  6. Still running stock compression?Drilled the side and cover of the airbox to let it breath?I assume you are running a open pipe?
  7. I just read 7 pages only to learn that everything went to hell in a handbasket?Great.
  8. Think they were referring to the much more potent aluminum framed,liquid-cooled,44hp, '00-'07 XR650R,a completely different animal.
  9. I have used Permatex Ultra Slick engine assembly lube on drz camshafts without issue,if you can't find the moly it should be just fine.
  10. The jd instructions cover it pretty well. You'll use the red needle for sure,probably at clip 3 and keep the stock 22.5 pilot jet. Hopefully you got the Kientech extended fuel screw too. DRZ400 Jetting Database; https://docs.google.com/spreadsheets/d/1HNSB3DrqJqHTInjVDKKS4HNSHZPbdK0ElbfNI5HxuZg/edit#gid=1132379936
  11. A drz set up for the freeway isnt going to worth a damn at gnarly off road single track.You have to purpose build them for the conditions it'll be ridden.If you're doing both serious compromises will have to be made to gearing,suspension valving,tires and possibly brakes and the seat is much narrower than a big dr,more mx style.That's my opinion.
  12. All you had to do on the throttle side is move the perch inboard to let the brake lever clear the handguard or put a aluminum spacer off the end of the bar.There are also various shorty levers available for such applications.
  13. That's why I asked,that AND worn float needle or seat o-ring can cause fuel to leak past and into the crankcase.
  14. Did you disconnect it in the "on" position or "prime"? Also,which carburetor is on the bike?
  15. You have two things going on to cause that. How do you know absolutely for sure that fuel is not leaking past the petcock? Have you disconnected the fuel line at the carb and placed it in a vessel overnight or longer to check?