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  1. mixture screw
  2. clutch torq
  3. wont start
  4. -------------carburation--------------
  5. sparks
  6. dyno jet kit
  7. 416 or 426
  8. FCR - 185 Main and Still Too Lean- WTF?
  9. cam
  10. oil level
  11. timing chain tensioner
  12. 250x wiring PLEASE HELP
  13. freakin 300ex
  14. Can anyone post pics of there engine rebuild??
  15. Cam Chain
  16. High Flow Aluminum Airbox
  17. Chain adjustement!
  18. Another 400EX jetting problem =-)
  19. Attention Sparks Exhaust Owners
  20. stock volume of a 400ex(?)
  21. warm engine tick
  22. valve spring compressor
  23. dual exhuast
  24. Engine Problems ?
  25. 300ex bore
  26. PIPes
  27. 165 main and still popping what should i do?
  28. feul to air and main jet?
  29. sparks x6 problems
  30. 416 problem
  31. cracked stock header
  32. Blueing on pipe....
  33. Carb leaking lots of gas in on Pos.
  34. Aftermarket 400ex Needle
  35. New 400EX Mods
  36. Mismatching headers and silencers?
  37. good pipes for 250ex
  38. Z400 with HMF jetting
  39. Rejetting 300ex tonight...need help please?
  40. What oil should I use? 1st oil change after rebuild...
  41. Revving Very High When low on gas, Couldn't Kill the Engine!!!!
  42. ProFab 385 kit
  43. what size rear sprocket??
  44. Need help
  45. DG xcellerator
  46. 300ex needle position
  47. electric start problem
  48. 250X with KTM motor on EBAY!
  49. 400ex Jetting Please Help!
  50. Where did everyone get their FCR 39 &41 Carbs From???
  51. Need QUICK Help!!
  52. oppinions on edelbrock quick silver carbs
  53. Is it supposed to start in gear?
  54. 400EX degree keys?
  55. timing chain guide?
  56. 250r leaking coolant
  57. Twist Throttle installation..is something wrong??
  58. LT Clutch Help?
  59. hey guys i gotta ? about piston compressions
  60. Slip on
  61. 427 wont start
  62. my 400 wont start
  63. wb e2
  64. installing 14t front sprocket, do i HAVE to change rear and chain?
  65. changing valve springs for a cdi box??
  66. Jetting lol
  67. Jetting For Wb E Series
  68. Carb Leaking
  69. Is it my battery or charging system?
  70. Help
  71. Shortening an HMF exhaust
  72. 400ex valve problem
  73. piston diameter
  74. sprocket for a 440
  75. 400ex help
  76. 87 honda 250x
  77. Does polishing the exhaust ports benefit a 400 much???
  78. will this work ????
  79. am i just stupid or what?
  80. Herrmann Racing Carrier
  81. Jetting shortcuts?
  82. 400ex Sproket and tyre selsction
  83. lectron carb. Help
  84. WB Filter?
  85. lt250r problems
  86. Stock 250ex running very rich?
  87. High flow air filter other than K&N?
  88. Oil Leak
  89. stiff throttle
  90. Need Help!!!!!!
  91. Sputtering R
  92. 2004 carb
  93. need help. yamaha warrior carb
  94. Stock exhaust on big bore
  95. pistons
  96. pro flow kit
  97. Srarks Timing Key
  98. Exhaust for my 300EX
  99. exhaust
  100. ehaust
  101. Exhaust Question
  102. 300ex bogging/stalling on uphills
  103. Port And Polish
  104. Kick Start 400ex
  105. 400ex engine questions
  106. some AIR questions???
  107. big bore kits
  108. 300ex jetting
  109. ??????? will it work ????????
  110. vibration?
  111. 400ex to 250x
  112. i need help...which motor is taller 426 or crf 450 ?
  113. exhaust
  114. How does Sparks X-6 compare to Big gun?
  115. power up package kit
  116. 14 tooth front
  117. 11:1 comp?
  118. 400 jetting???
  119. FCR Carb
  120. 87 250X Rejetting
  121. how can you tell how many disks?
  122. UH OH broke off an exhaust bolt
  123. Kickstart EX
  124. Why does high octane race fuel burn cooler?
  125. Sparkplug Gapping
  126. 400ex crankcase problem/question?
  127. Looney Tuned Exhaust or Sparks X6
  128. sunk the forman please help!!
  129. No wonder it was loud!!
  130. Quick Twin air Question
  131. water in steering stem???
  132. Man this is frustrating
  133. well the threads pulled out of the cylinder
  134. gearing link?
  135. big bore questions...help!!!
  136. hmf pipe
  137. av gas ratio?
  138. pipes
  139. White Brothers Rev-Kit
  140. what size jet
  141. Paul Turner Mid Range Pipe
  142. Fcr
  143. Heli-Coil Kit
  144. Sparks Key and Cam
  145. which exhaust
  146. MBRP slip-on Jetting ?
  147. PLease Help asap
  148. graydon proline exhaust
  149. Smoking EX
  150. axle carrier?
  151. Lonestar Racing contact?
  152. ok
  153. Dg Rcm
  154. holeshots
  155. AIr Filters
  156. moose (bulb) exhast
  157. Fdo Wtf
  158. 250x won't run!
  159. procircuit t4
  160. running like s**t
  161. Please give me some advice on how bad this really is.... Bolt broken in motor
  162. xr400 motor
  163. 250x exhaust
  164. hmf
  165. Jetting
  166. piston dilema
  167. what size sprockets?
  168. exhaust interchangeability
  169. yooshimeria pipe, jetting
  170. one more performance question before i order
  171. big bore?
  172. Gas
  173. 250r on pump gas
  174. 426 jetting?
  175. which pipe is better yosh or sparks
  176. K&N or UNI Air Filter????
  177. head gasket
  178. wut jets for my 250x
  179. Stupid question! loctite when rebuilding motor?
  180. baffle
  181. Need help ASAP on exhaust problem
  182. 400ex big bore kits
  183. First ride on my 400EX
  184. decompressor
  185. Oil??
  186. Jetting Survey for 40mm FCR Carb
  187. Pics of Tinners or OMF Air Scoops
  188. 400ex Kits
  189. maybe a 416 now....anyone with a 416 chime in please....how long since you've rebuilt
  190. 200x atc motor question
  191. 400EX, can it go fast?
  192. CRD Exhaust - anyone had any experience with them?
  193. 300ex head pipe?
  194. head gasket question
  195. new 416 cutting out
  196. What have you heard about a Muzzy?
  197. Pipe Question...
  198. Throttle hesitation question
  199. Axle Problems
  200. Motor????
  201. 300ex kick starter
  202. Engine Cases
  203. Water Wetter???
  204. automatic cam tensioner?
  205. kill switch hook up
  206. 300ex FST oil cooler pics
  207. What would Happen?
  208. Smoking a lot plz help!
  209. Help WB pipe
  210. am i suppose to put filter oil on outerwears?
  211. losing the faith in my engine!!
  212. quick help plz?
  213. Carb Problem?
  214. 250r shift shaft leakage???????? please help
  215. Dirt Bike Ignition problems PLEASE RESPOND
  216. FST Oil Cooler w/ pics
  217. 11:1 stockbore
  218. carb mod for 416ex
  219. Quick?
  220. white bros
  221. power kit
  222. hotcams stage 1 or 2
  223. Help
  224. 300EX with 350x engine?
  225. 440 kits??
  226. Ct Racing Exhaust
  227. T-4 or HMF for utility?
  228. where to get a good 426 kit
  229. 250r still leaking
  230. 400ex weight of engine?
  231. FDO studs
  232. YFZ450 valve clearance
  233. Pipe
  234. Which pipe should I choose?
  235. 1986 250r going back together with you help
  236. 66mph top speed GPS.
  237. Best tire for trails.
  238. How To Properly Break in a Trinity Motor?
  239. boring case?
  240. Piston color..... lean, rich, ????
  241. am i right
  242. Lean Issue - 205 Main and Still Lean - HELP!!!
  243. Gasket where slip-on meets header
  244. Engine Mods
  245. Water stalling motor
  246. engine stall when blipping the gas
  247. cheapest place to get hinson inner hub
  248. 300ex vs. 400ex
  249. dirty valve
  250. Chain and sprocket install.