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  1. 426 wiesco piston (2 replies)
  2. Do I need a new clutch (10 replies)
  3. help with dirtbike kill switch (5 replies)
  4. yz426ex Clutch Cable? (0 replies)
  5. 300ex to a 350x? (3 replies)
  6. Reeds (1 replies)
  7. X-6 and k&n on stock engine (7 replies)
  8. Need help think I toasted motor.... (5 replies)
  9. dumb question but.. (6 replies)
  10. what cam to get?????? (3 replies)
  11. rear axle bearings quick question (5 replies)
  12. Roll vs. Pro Design (10 replies)
  13. Sparks/GT Thunder 8-Plate Clutch- Worth It? (14 replies)
  14. junk clutch basket? (2 replies)
  15. carb questions (1 replies)
  16. 250R engine problems (6 replies)
  17. Cutting Spark Arrestor Off (5 replies)
  18. got a 440 and need an oil cooler but.... (1 replies)
  19. Oil Temp (0 replies)
  20. 416 or 425 (9 replies)
  21. 300ex oil cooler (8 replies)
  22. Connecting Rod Opinion (5 replies)
  23. Jetting (1 replies)
  24. 440 big bore (3 replies)
  25. Sparks Degree Key (0 replies)
  26. starting my project... (17 replies)
  27. Need a quiet Pipe (9 replies)
  28. Jetting on 416 (8 replies)
  29. Big fin head mod (2 replies)
  30. problem - 400ex carb (4 replies)
  31. rings gapped too much.. (2 replies)
  32. how to contact hotcam (2 replies)
  33. Need Close Up Pics. (7 replies)
  34. Need jetting help bad! (1 replies)
  35. ? about hotcam stageII (4 replies)
  36. were to get race cams and wut kind (11 replies)
  37. 416 v. Preditor v. rapotor (23 replies)
  38. Durablue Sprocket Hub (2 replies)
  39. Rev Box (5 replies)
  40. Stock pipe? With engine mods (11 replies)
  41. worn 400ex sprocket hub (0 replies)
  42. exhaust (2 replies)
  43. Deceleraion? (3 replies)
  44. how much HP will i have (4 replies)
  45. 400ex was a 426ex sputter and spits (3 replies)
  46. 400ex seat (2 replies)
  47. Quietest exhaust? (2 replies)
  48. New 406 ready on saturday need help!!!!! (1 replies)
  49. motor work?? (5 replies)
  50. Cams? (8 replies)
  51. Can I run no lid? (3 replies)
  52. Dura blue sprocket hub! (0 replies)
  53. JE Piston Question HELP FAST (9 replies)
  54. what should i do to my stock 300ex (7 replies)
  55. 400ex cam chain adjuster (1 replies)
  56. check out the 502 (6 replies)
  57. Motor help (5 replies)
  58. Which pipe is right (12 replies)
  59. Cold blooded 400ex (3 replies)
  60. Wisconsin DNR decible limit (5 replies)
  61. axle bearings (7 replies)
  62. Whats the Average HP of a 416 (5 replies)
  63. what else to do to 406 for max power? (12 replies)
  64. Stuck in Reverse? (3 replies)
  65. 400ex full set of fenders or slip on pipe (0 replies)
  66. what is going on? (5 replies)
  67. 400EX Service Manual (13 replies)
  68. 400ex sprocket (7 replies)
  69. banshee problem (6 replies)
  70. 400ex rings (3 replies)
  71. Black Spark Plug (10 replies)
  72. should I adjust my valves? (2 replies)
  73. 400ex axle w/ 250r? (1 replies)
  74. Stator problem? specs? (0 replies)
  75. oil rings won't go in. (4 replies)
  76. How much horseower (3 replies)
  77. best exhaust for 400ex (5 replies)
  78. why??? (2 replies)
  79. CB350 motor in a 400? (3 replies)
  80. installing new chain (4 replies)
  81. starting headaches (3 replies)
  82. Dumb Question (3 replies)
  83. Which size to bore (3 replies)
  84. Problems (11 replies)
  85. slip on (7 replies)
  86. Jetting help (2 replies)
  87. Jetting help (1 replies)
  88. Motor went out while running 4th gear pinned. Looks like it is time for a rebuild (26 replies)
  89. magura clutch problem (0 replies)
  90. Big Gun and WB E2 (0 replies)
  91. Chain links (0 replies)
  92. HMF/White bros combo on 300ex???? (3 replies)
  93. 300ex -- 250r hub question (0 replies)
  94. People with TC motors (16 replies)
  95. graydon proline exhaust (3 replies)
  96. 400EX HotCam Stage 2 (16 replies)
  97. duncan racing 300ex national kit (2 replies)
  98. Rev Limiter Question~ (5 replies)
  99. 313,330,350 kits? (35 replies)
  100. Dr D Exhaust? (4 replies)
  101. Compression Test (0 replies)
  102. sparks x-6 vs. hmf for 400ex (15 replies)
  103. 16 tooth front sprocket (11 replies)
  104. 400 carb on a 300ex (1 replies)
  105. Name that airbox... (4 replies)
  106. how much power will it make? (2 replies)
  107. wont work (2 replies)
  108. Best Exhaust for Banshee (24 replies)
  109. What causes this? (11 replies)
  110. 300ex front sproket problem (9 replies)
  111. 400ex motor in 300ex frame? (6 replies)
  112. Crf 450 Gearing (2 replies)
  113. Removing Decompression on HRC cam (3 replies)
  114. Engine and jetting help!!!! (3 replies)
  115. how fast will a stock 300ex go? (25 replies)
  116. Stroker question (15 replies)
  117. JE 416 10.8:1 piston (11 replies)
  118. jet kit and filter (11 replies)
  119. Help!!!!! (1 replies)
  120. What kind of exhaust is this? (36 replies)
  121. 300ex rear end and motor work (12 replies)
  122. DG Baja Skid ? (9 replies)
  123. Help with Carb!!! (1 replies)
  124. procurcuit t4? (4 replies)
  125. messed up raptor (1 replies)
  126. 300ex starter (1 replies)
  127. 300ex starter (3 replies)
  128. need help? (0 replies)
  129. more power 4 my 250 (1 replies)
  130. rookie (7 replies)
  131. axle???????????? (0 replies)
  132. rev box with cam (11 replies)
  133. ?? about top end (1 replies)
  134. Jammed Decompressor (3 replies)
  135. 400ex V. Warrior (76 replies)
  136. CRF450 Help!!! or just a good mechanics help! (5 replies)
  137. 300ex probs (11 replies)
  138. 400ex carb on 300ex?? (0 replies)
  139. Help, my handlebars are shocking me (6 replies)
  140. magura clutch bleeding procedure (5 replies)
  141. 300/400ex jetting (3 replies)
  142. HMF/White bros combo on 300ex (5 replies)
  143. Hinson Basket vs. Complete Hinson Assembly (14 replies)
  144. Update: Rebuilt Engine Electricle Problem (3 replies)
  145. sumthings wrong. (1 replies)
  146. Jetting for ESeries Exhaust (3 replies)
  147. serial nuimber? (3 replies)
  148. Air/fuel ratio meter - anyone has or know about it? (8 replies)
  149. 14 tooth my *** (22 replies)
  150. Anyone use hydraulic clutch with hinson sidecase ? (400ex) (1 replies)
  151. Need a part # (1 replies)
  152. best 400ex exhaust (17 replies)
  153. what kind of carb (0 replies)
  154. 400ex gasket mods (2 replies)
  155. 250X with KTM motor back on EBAY! (0 replies)
  156. please help (5 replies)
  157. Kawasaki 700 Prairie: HMF or Bust? (14 replies)
  158. Hot Cam stage 2 question urgent!!!! (7 replies)
  159. midrange loss of power? suggestions! (11 replies)
  160. 11:1 wiseco piston (3 replies)
  161. Just Stopped Running (31 replies)
  162. A few 416 questions (13 replies)
  163. 300ex problums help!!! (0 replies)
  164. half link (0 replies)
  165. 400ex axle question (1 replies)
  166. HELP!!! Engine removal (7 replies)
  167. sparks x-6 (5 replies)
  168. Start out mods??? (9 replies)
  169. Where can I buy a new cylinder? (3 replies)
  170. 41fcr throttle cable question (8 replies)
  171. 250r snorkel tube (1 replies)
  172. New Front Sprocket? (2 replies)
  173. White Brothers E2 (1 replies)
  174. grinding noise (1 replies)
  175. Gasket Question (8 replies)
  176. Engine Work!!!!! (2 replies)
  177. urgent need engine help! (12 replies)
  178. w bros pipe cracked (17 replies)
  179. 400ex problems (1 replies)
  180. sprockets (1 replies)
  181. I have oil coming out of my breather(pcv) (0 replies)
  182. My ATV still wont start (11 replies)
  183. Question About Jetting for K&N Filter (7 replies)
  184. drag racing camshaft (0 replies)
  185. 350 Kit (6 replies)
  186. I need help fast!!! (19 replies)
  187. Problems (0 replies)
  188. Rev Box (1 replies)
  189. jetting (5 replies)
  190. Huge Problem with exhaust studs!!!!! (6 replies)
  191. oil cooler (0 replies)
  192. Pro Circuit type 496 jetting (1 replies)
  193. Costless Mods (24 replies)
  194. which cdi(rev limiter)?? (8 replies)
  195. 400ex quitting at high speed ?? (8 replies)
  196. Pro Circuit t4 pissin me off!!!!!!!! (15 replies)
  197. oversized radiator? (3 replies)
  198. 416 owners (9 replies)
  199. OIL COoLER (0 replies)
  200. All motor work is getting done this week (7 replies)
  201. yz426/400ex conversion ??? (3 replies)
  202. Clutch is fugged up, what is really wrong? (10 replies)
  203. the 450 stroker results (12 replies)
  204. freinds raptor wont start (8 replies)
  205. i need your opinion 400ex riders (31 replies)
  206. rev boxes (4 replies)
  207. 400EX HD Transmission Gears (2 replies)
  208. 300ex boging down (5 replies)
  209. Backfire? (13 replies)
  210. 04 Red 400ex - Yellow HMF pics (5 replies)
  211. 400 ex Tappet Cover Bolt #7 Breaking (6 replies)
  212. Playing with pipes (5 replies)
  213. Rev boxes without timing advancement? (6 replies)
  214. 250x to 300ex transmission (0 replies)
  215. My engine stalls after a jump, any suggestions? (11 replies)
  216. 300ex needs more power!!! (12 replies)
  217. 400ex: grinding headpipe welds (7 replies)
  218. oil tank (2 replies)
  219. jet problem (6 replies)
  220. Stock dyno numbers (2 replies)
  221. white brothers vs. hmf (10 replies)
  222. Pipe Question (2 replies)
  223. oil for stroker motor (1 replies)
  224. New EX Motor vs Modded Z Drag Race Results (17 replies)
  225. which is the best engine biulder 4 my 300? (4 replies)
  226. first 400ex (5 replies)
  227. crf motor in XC (0 replies)
  228. what is this piece and what does it do (2 replies)
  229. HMF slipon jetting for SF Bay area CALIFORNIA (2 replies)
  230. jetting (3 replies)
  231. white bros. revbox (3 replies)
  232. Lonestar axle problems (6 replies)
  233. project 300ex (12 replies)
  234. whats this ticking noise???? (15 replies)
  235. Sincro Problems (0 replies)
  236. honda TRX 125 not startin, also 83' honda ATC no spark (1 replies)
  237. Need Help with top end problems (11 replies)
  238. Whats it worth? (3 replies)
  239. "Sincro" Problems (0 replies)
  240. 416 jetting (15 replies)
  241. Need Help On Doing Top End On 300ex URGENT!!!!!!!! (13 replies)
  242. which head gasket for a 425??????? (13 replies)
  243. Stripped card screw (5 replies)
  244. Jets (3 replies)
  245. Raptor with single carb? (3 replies)
  246. cam installation (8 replies)
  247. No Gasket (8 replies)
  248. Where to buy vavle seals? (7 replies)
  249. Dynojet (12 replies)
  250. spark plug (6 replies)