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  1. 40mm FCR - Service Honda (19 replies)
  2. 250ex pipes ?? (5 replies)
  3. 426 vrs 440 (3 replies)
  4. 416 rejet (3 replies)
  5. K&N or UNI filer? (21 replies)
  6. Re-jetting Question (2 replies)
  7. quad dies when throttle's applied. (10 replies)
  8. 250x/300ex jetting????? (3 replies)
  9. Puzzling exhaust stud leak?? (7 replies)
  10. exhaust? (4 replies)
  11. I cant believe Im hearing this....... (32 replies)
  12. Cam removal question (7 replies)
  13. Engine cutting out!!! (1 replies)
  14. bore size (3 replies)
  15. cr 250 ignition on a trx250r? (6 replies)
  16. increase topend power on 400ex (18 replies)
  17. sparks flying (2 replies)
  18. Got amplink? (5 replies)
  19. Magura hydro clutch good or bad? (3 replies)
  20. cut's out at haft trottle (3 replies)
  21. Advantages of Stroking? (17 replies)
  22. whats the best carb?(426ex) (3 replies)
  23. need answers (8 replies)
  24. i need some advise (7 replies)
  25. oil (27 replies)
  26. check this out (3 replies)
  27. HRC cam or XR cam ???????? (7 replies)
  28. Stupid Question (0 replies)
  29. Just got done with a valve adjustment (3 replies)
  30. Fla.jetting -look (2 replies)
  31. 400EX High comp stock piston or 416-need more power (8 replies)
  32. Methanol Carbs (2 replies)
  33. just a simple question about a cam.... (8 replies)
  34. drop in cams (6 replies)
  35. QUIET, w/no Power Loss Exhaust System (37 replies)
  36. 250x to 350x conversion (9 replies)
  37. Case Saver question? (3 replies)
  38. Need a little engine help... (2 replies)
  39. Shorty stock 400ex (HELP) (2 replies)
  40. key switch with a quadtech hood (4 replies)
  41. What kind of chain/sprockets??? (29 replies)
  42. what to do? (2 replies)
  43. Stiff clutch Question!!!! (14 replies)
  44. 400ex question? (4 replies)
  45. dynojet needle and carb question (2 replies)
  46. motor prob! (4 replies)
  47. i think i want a 310 for my 250r? (26 replies)
  48. Will I be happy with a 400ex (9 replies)
  49. wobbley crank (4 replies)
  50. anybody running HMF Exhaust? on a RECON? (0 replies)
  51. Sparks Ignition Purchase? (1 replies)
  52. Shift lever position (12 replies)
  53. cripes (17 replies)
  54. Air/Fuel Screw (4 replies)
  55. were can i get a good price on axle bearings (2 replies)
  56. slow jet (2 replies)
  57. light bulb (1 replies)
  58. tried plug chop (1 replies)
  59. Clanking noise? (5 replies)
  60. 426 all set up? (4 replies)
  61. 250r clutch update (3 replies)
  62. 2000 400 ex shift problems (4 replies)
  63. 250ex full system - HMF or Graydon? (4 replies)
  64. wb disc's? (4 replies)
  65. 2004 400EX carb 38mm? (37 replies)
  66. carb question (4 replies)
  67. Stag 1 (2 replies)
  68. they DROPPEd the pilot in my 426??? (12 replies)
  69. exuast question (0 replies)
  70. Jetting Question for 300ex (7 replies)
  71. Race Your Built EX Against the New 450R Yet? (19 replies)
  72. 300ex Won't Start (7 replies)
  73. After market carb (6 replies)
  74. whats the diffrence? (3 replies)
  75. What compression does a stock 400ex have (1 replies)
  76. Yoshimura worth the extra dough? (12 replies)
  77. rev limiter??? (4 replies)
  78. top end rebuild (3 replies)
  79. Idle screw (7 replies)
  80. Sparks timing Key (7 replies)
  81. What oil to run (6 replies)
  82. Jet sizes (11 replies)
  83. pilot jets (5 replies)
  84. Just ordered WB (4 replies)
  85. jetting (3 replies)
  86. Who cleans up the ports? (19 replies)
  87. You guys that run AMSOIL look here (42 replies)
  88. jetting with a k@n filter and e- series pipe (3 replies)
  89. Wtf!!!??? (42 replies)
  90. need help (3 replies)
  91. desert toyz (0 replies)
  92. Gunnar Teather (6 replies)
  93. IS there a low oil light on the 400ex (4 replies)
  94. break in process (4 replies)
  95. 400ex break in process (4 replies)
  96. any one here about the eddie sander racing engine for the 400ex??? (5 replies)
  97. need more power (6 replies)
  98. Curtis Sparks pipe question... (5 replies)
  99. 41 FCR owners with 440's....please read (2 replies)
  100. 110 leaded octane? (4 replies)
  101. 300ex worth 2400? (10 replies)
  102. slip on exhaust for built motor? (8 replies)
  103. looking for a post (4 replies)
  104. 400ex cams (1 replies)
  105. Rincon Pipe Reccomdation (13 replies)
  106. piston and cam (2 replies)
  107. bummer (2 replies)
  108. headers glowing? (12 replies)
  109. 400ex daul exhaust (9 replies)
  110. what jet (0 replies)
  111. modified header (2 replies)
  112. axle problems..please help! (3 replies)
  113. Clutch (1 replies)
  114. 300ex headpipe (5 replies)
  115. 400ex...Help! (3 replies)
  116. front sprocket question??? (4 replies)
  117. 300ex whats that noise?! (10 replies)
  118. no choke starts? (2 replies)
  119. what size jet do i use for a 400ex????? (4 replies)
  120. '01 400 won't start. Please help. (8 replies)
  121. Chain questions (5 replies)
  122. fmf megamax 2 ? (2 replies)
  123. Steam comming out of my Radiator overflow... *HELP* (9 replies)
  124. Burgard bearing carrier problem (4 replies)
  125. OOOPS!! Carb Problem (4 replies)
  126. 416 wont start help!!!! (9 replies)
  127. Best Aftermarket Brake Pads ??? (13 replies)
  128. will crf big bore kits fit in the new 450r (5 replies)
  129. What size scoket is a 400 ex Spark plug (8 replies)
  130. Gaskets (3 replies)
  131. Blowing Fuses (9 replies)
  132. 400EX Exhaust (6 replies)
  133. If You Have An Opinion On Hotcams Then Read This (15 replies)
  134. Headers Melting Clutch Cable (2 replies)
  135. Cam Help (6 replies)
  136. lrd pipe (0 replies)
  137. Hot Cams (13 replies)
  138. 13:1 or 12:1 Compression for 440? (15 replies)
  139. Hard Starting, Plug Fouled! (3 replies)
  140. Slip On (1 replies)
  141. ALBA Pipe (12 replies)
  142. gearing change (4 replies)
  143. UNI Airbox vents (0 replies)
  144. 400ex high compression runners (9 replies)
  145. reading spark plug color (2 replies)
  146. magura clutch help (3 replies)
  147. flywheel/stator problem (2 replies)
  148. jetting (3 replies)
  149. PLUG CHOP -pilot jet/opinion's (10 replies)
  150. Clutch cover (2 replies)
  151. shining up my pipe (5 replies)
  152. High Comp Pistons (8 replies)
  153. Hmf (5 replies)
  154. TC Cam 926 (6 replies)
  155. Crf450 in 400ex? (3 replies)
  156. Engine builders....Help needed (1 replies)
  157. Which pipe is better for a 250r ESR5 or LRD (17 replies)
  158. 400ex engine...would it fit? (6 replies)
  159. 416/440 big bore kit vs. high comp piston/cam (6 replies)
  160. New sprocket / old chain? (4 replies)
  161. what jet? (1 replies)
  162. OH Damn, Another HotCams failure! (28 replies)
  163. carb worth it or not???? (9 replies)
  164. stock for now (5 replies)
  165. What jets come stock (4 replies)
  166. 400ex Upgrades (5 replies)
  167. chain roller thing ????? lol (3 replies)
  168. Electrical problem-almost impossible to start (10 replies)
  169. 11:1 compression pistons (2 replies)
  170. need help with instalation (1 replies)
  171. TC Racing (26 replies)
  172. Public Announcement (uh huh..) (1 replies)
  173. bogging in all gears (9 replies)
  174. Power Gain (1 replies)
  175. my fcr 41 carb on a crf? (0 replies)
  176. anybody have a aftermarket carb on there 300ex (0 replies)
  177. Not getting any spark (8 replies)
  178. 250r in 250x (4 replies)
  179. front sprocket (1 replies)
  180. Sparks National 416 vs 426 (2 replies)
  181. 416 (5 replies)
  182. Pipes!! --What is your opinion on the best pipes for the 400EX? (41 replies)
  183. Big Bore kits: which is best? (3 replies)
  184. Valve adjustment, and valve seal questions (2 replies)
  185. valve clearance (3 replies)
  186. exhaust???'s (4 replies)
  187. 400ex wont start for anything! plz help! (20 replies)
  188. Sprocket question (1 replies)
  189. Cold start problems... (13 replies)
  190. Ground my header welds..........Pics (7 replies)
  191. 250r carb (12 replies)
  192. Information Needed (1 replies)
  193. Need to Beat a Z400 (23 replies)
  194. getting the timing right? (5 replies)
  195. rod bearings on a 400ex (5 replies)
  196. cleanin cases???? (2 replies)
  197. need exhaust valves (1 replies)
  198. auto clutch for manual transmissions (25 replies)
  199. 400ex carrier (8 replies)
  200. number of discs to use with e-series (5 replies)
  201. battery won't charge (3 replies)
  202. when doin a cam? (6 replies)
  203. cr 500 in a 400ex frame?? (19 replies)
  204. 400ex cam or piston (5 replies)
  205. profabatv kits have a problem (2 replies)
  206. Sparks X-6 question. (Installation) (5 replies)
  207. Teeth (1 replies)
  208. proper break in period for a bore kit (16 replies)
  209. Fuel question (11 replies)
  210. Need More TC Racing info (3 replies)
  211. jetting problems (2 replies)
  212. 400ex piston question (3 replies)
  213. decided to shorten my silencer... (20 replies)
  214. K&N/PC T-4 jetting? (5 replies)
  215. 250r motor in a 400ex frame (1 replies)
  216. Chain and sprockets (4 replies)
  217. I need help fast. (6 replies)
  218. Need Help on Tether kill (5 replies)
  219. need help!!!(please) (4 replies)
  220. hard to start...not anymore (17 replies)
  221. Valve adjusting, sparks timing key difficultys (6 replies)
  222. oil cooler? (31 replies)
  223. CRF450 into a Z frame... (4 replies)
  224. Best Oil for FoamType Filters?? (19 replies)
  225. gear's? (1 replies)
  226. Lonestar Bearing Carrier Question (5 replies)
  227. 416 Kits!!! (26 replies)
  228. What size sprockets are you running??? (15 replies)
  229. pop pop pop (4 replies)
  230. Different pipe for racing?? (3 replies)
  231. Yosh pipe jetting (5 replies)
  232. whats my problem? (4 replies)
  233. 400 carb on a 300? (2 replies)
  234. Jaggs oil cooler?? (8 replies)
  235. jetting????WHAT?? (5 replies)
  236. few questions with my new motor (1 replies)
  237. If you don't use race gas, READ THIS: (36 replies)
  238. What's the easiest way to fix my screw up? Broken header stud??? (10 replies)
  239. Air/fuel Screw Question (3 replies)
  240. MBRP full system (0 replies)
  241. How much for your 440 Kit (4 replies)
  242. which is the better slip-on? (33 replies)
  243. Left crankcase cover tourqe specs? (5 replies)
  244. jetting? maybe? (2 replies)
  245. quick jetting question (3 replies)
  246. a huge question (3 replies)
  247. 250r case assembley (2 replies)
  248. exhaust?? (8 replies)
  249. quick idling question (6 replies)
  250. Hard to start. (6 replies)