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  1. R4 E-series (2 replies)
  2. Clutch cable (1 replies)
  3. .120 over is how many cc's??? (13 replies)
  4. Clutch Trouble? (1 replies)
  5. Which companies make pipes for the YZF 426 (quad version)?? (12 replies)
  6. new clutch? (1 replies)
  7. Turbochargers! (18 replies)
  8. Looking at a 440EX, have some n00b questions (3 replies)
  9. help quick!!! (2 replies)
  10. top speed (15 replies)
  11. jet size (9 replies)
  12. Building a 416ex (2 replies)
  13. 300 engine mods (again) (6 replies)
  14. need wiring harness help (4 replies)
  15. newbie ?'s (5 replies)
  16. heat guard (0 replies)
  17. 14 tooth front sprocket (9 replies)
  18. 440ex jetting ? (1 replies)
  19. 250EX Manuel Clutch (4 replies)
  20. What are all the mods you can put into a quad in order to increase power? (6 replies)
  21. 300ex with 14t sprocket (6 replies)
  22. Jardine Exhaust (2 replies)
  23. SOLID 416 Advice needed Quick. (35 replies)
  24. Stock Exhaust Question (2 replies)
  25. need 300ex valve specs. (2 replies)
  26. 250ex valve specs (2 replies)
  27. 250EX vent hose routing (4 replies)
  28. Carb Vent (2 replies)
  29. xr 650 or xr 600 (1 replies)
  30. 300EX Sprockets and Tires (5 replies)
  31. What's next??? (11 replies)
  32. aftermarket clutch (4 replies)
  33. Clutch problem HELP (7 replies)
  34. mechanics only, plz help (11 replies)
  35. for all the mechanics!! (2 replies)
  36. help!! z-50 (9 replies)
  37. 300EX clutch problems (3 replies)
  38. 420ex (4 replies)
  39. free mods (4 replies)
  40. Clutch problem help me out (2 replies)
  41. Best after market chain to buy thats not too much $ (14 replies)
  42. 350X conversion .... (15 replies)
  43. wiseco's new 12.5 to 1 piston (0 replies)
  44. valves/T alignment (1 replies)
  45. 300ex carb problems!need help asa (0 replies)
  46. different battery (0 replies)
  47. where to get flywheel shaved (2 replies)
  48. valves, help pleas (2 replies)
  49. Which Exhaust Setup? (4 replies)
  50. My Sprockets Won't Line Up!?! (21 replies)
  51. Adjusting Valves with the Sparks key installed (5 replies)
  52. 400ex and Z pipe clamp (3 replies)
  53. CHM exhausts (5 replies)
  54. Predator Handling ??? (10 replies)
  55. Idiot's Guide to More Power on 400ex (2 replies)
  56. clutch spring (0 replies)
  57. Gas Problems (3 replies)
  58. help 300ex riders (6 replies)
  59. what should i run? (1 replies)
  60. Hindle Exhaust (1 replies)
  61. 400ex carb difference!!!!! (7 replies)
  62. Best Airfilter? (4 replies)
  63. The disks on the E series (1 replies)
  64. crf250 (5 replies)
  65. such thing as a hush kit for dmc exhaust? (5 replies)
  66. '96 Warrior (0 replies)
  67. pro circuit pipe wow!!!!! (10 replies)
  68. which pipe to choose for my 250ex (28 replies)
  69. I need kill switch install info. (3 replies)
  70. Sparks Clutch Kit ???s (7 replies)
  71. HElP (2 replies)
  72. anyone have this setup?? (4 replies)
  73. Everybody post their sprocket sizes please!!! (25 replies)
  74. Where did my sixth gear go (14 replies)
  75. Oil change Question? (7 replies)
  76. utility parts (5 replies)
  77. Can You Put A.... (2 replies)
  78. Need valve clearances for stock 300ex ASAP (1 replies)
  79. easy engine question (1 replies)
  80. which is the best????? (13 replies)
  81. back fireing ex (7 replies)
  82. 300ex/350x wiring (2 replies)
  83. FMF 250r !! (4 replies)
  84. Chain size (10 replies)
  85. 87' 250x tranny problems.... (13 replies)
  86. My YZF/400ex conversion pipe (6 replies)
  87. 250ex exhaust (1 replies)
  88. exhaust (2nd try) (9 replies)
  89. exhaust?? (1 replies)
  90. what pipe??? (0 replies)
  91. Blown head gasket....again (18 replies)
  92. HMF full exhaust ques... (5 replies)
  93. jetting question please help (1 replies)
  94. Bigger pilot=Higher Idle?? (2 replies)
  95. 300ex motor....tell me if this will work..... (11 replies)
  96. Recommendation for big bore kit(300) (8 replies)
  97. Jetting?? (3 replies)
  98. 36 tooth rear sprocket. (5 replies)
  99. white bros exhaust (2 replies)
  100. What do you guys think of the WB R-4? (31 replies)
  101. 300EX to 650EX???? (16 replies)
  102. jet question (0 replies)
  103. Sell 300 for 250r ?? (8 replies)
  104. help broken exhaust head bolt (1 replies)
  105. 416 Race Gas (17 replies)
  106. Moto 440 vs. 440ex (68 replies)
  107. 250ex vented valve cap (4 replies)
  108. Different Started Button. (6 replies)
  109. 400ex Engine (1 replies)
  110. What do you EX Riders Think? (13 replies)
  111. 400 ex camshaft question (5 replies)
  112. 400 ex jetting (3 replies)
  113. Blue smoke (6 replies)
  114. Renthal front sprocket (2 replies)
  115. .75 over =? (9 replies)
  116. Need Help with this Axle Bearing ASAP!!! (7 replies)
  117. Engine Help (0 replies)
  118. little tip for ya (15 replies)
  119. R4 Headpipe? (7 replies)
  120. FMF Power Core 4-2 and x-4 head pipe (0 replies)
  121. Piston Question (8 replies)
  122. Airbox Lid Vs. Dad (13 replies)
  123. taking the choke off (1 replies)
  124. Jetting Please Help (2 replies)
  125. Is there an easier way to put the Ring that goes around the carrier on????? (5 replies)
  126. Cam chain install.............. (2 replies)
  127. Yet another jetting question (1 replies)
  128. Sanding clutch plates (7 replies)
  129. White Brothers Air Filter (3 replies)
  130. case saver (4 replies)
  131. 250r clutch plates on a 400ex? (5 replies)
  132. help putting on a new clutch return spring (6 replies)
  133. white bros exhaust (3 replies)
  134. Something is rattling in my motor? (20 replies)
  135. Stock air filter (5 replies)
  136. Oil on K&N (4 replies)
  137. knocking sound? (5 replies)
  138. .040 bore over (1 replies)
  139. Is 300EX 250X CDI box the same (1 replies)
  140. 250r bore (2 replies)
  141. choke removel?? (1 replies)
  142. FCR 39 carb + 416 (30 replies)
  143. new jets (0 replies)
  144. Jetting.... (25 replies)
  145. 67.5 overbore on a 250R (3 replies)
  146. Clutch??? (1 replies)
  147. R wont run for more than 5 min (13 replies)
  148. Jetting, Jetting, Jetting (9 replies)
  149. what race gas?? (13 replies)
  150. i want to mix not let the injector???? (20 replies)
  151. jetting (0 replies)
  152. 300ex Valve Timing (5 replies)
  153. 250x/300ex head urgent !!!! (0 replies)
  154. yz 250 piston in a 250r engine (17 replies)
  155. Whats going on here (8 replies)
  156. Head Shaving Question For '03 Yz 125 (4 replies)
  157. M-4 Slip on... (5 replies)
  158. New exhaust!! (4 replies)
  159. degree key slip? (0 replies)
  160. 250x jetting (7 replies)
  161. It's alive (jetting trouble part 3)!! (8 replies)
  162. which pipe last one (17 replies)
  163. i know what your gonna think.... (6 replies)
  164. 400ex Jetting (2 replies)
  165. Taller Gearing or Shorter Gearing? (3 replies)
  166. Stage 1 HotCam (1 replies)
  167. engine sputtering (1 replies)
  168. cannot get woodruff key off the shaft (7 replies)
  169. oil puddling around valvespring????? (3 replies)
  170. What head pipes fit with the CFM oil tank??? (8 replies)
  171. Tires?????????????????????????? (1 replies)
  172. atc 250r jets (3 replies)
  173. Idling problems (0 replies)
  174. rev box (12 replies)
  175. cooling the 400 (5 replies)
  176. Help Please-plug Keeps Fouling (4 replies)
  177. crank case broke (6 replies)
  178. Need Help, Starts to sputter after 1/4 throttle (5 replies)
  179. Idling trouble (4 replies)
  180. Where to buy new swing arm axle carrier bearings for aftermarket twin row carrier? (6 replies)
  181. Jetting and Cam Question (3 replies)
  182. FCR 40mm (3 replies)
  183. 300EX Case Cracking around Motor Mounts (2 replies)
  184. Axel question!!!? (0 replies)
  185. Where is the cheapest place to buy New Lonestar axles? (18 replies)
  186. Price of new OEM valve springs??? (10 replies)
  187. Valve Test? (12 replies)
  188. 300EX wont start...eletrical problem?? (15 replies)
  189. Airbox question (1 replies)
  190. Where to get a 36 & 35 tooth rear sprocket FAST!!! (11 replies)
  191. Help me choose an axle. (7 replies)
  192. will i have to rejet? (2 replies)
  193. hotcam stage 1 (4 replies)
  194. Whit Brothers R4 (4 replies)
  195. 300ex..wire diagram.. (2 replies)
  196. Nitrous?????? (11 replies)
  197. floats? float bowl? (4 replies)
  198. cdi box- rev limiter? (0 replies)
  199. 36t harder to pull wheelies? (8 replies)
  200. Question (2 replies)
  201. Degree key (9 replies)
  202. Pilot screw, quick rep please. (2 replies)
  203. TC rev box for 400ex (2 replies)
  204. Jetting? (1 replies)
  205. Stock 400EX king of the drag strip?!? (17 replies)
  206. gas leaking out of carb (10 replies)
  207. gas/oil, in in in filter , air intake (1 replies)
  208. decompression install???? (3 replies)
  209. 300ex Missing Out (6 replies)
  210. My bike cuts out when.... (3 replies)
  211. whats the MAX HP of a 416ex? (14 replies)
  212. hp/torge (2 replies)
  213. CASE SAVER for 300EX (1 replies)
  214. some help with jetting? (0 replies)
  215. lt500 (4 replies)
  216. 250EX clutch (10 replies)
  217. I got a problem (4 replies)
  218. gas around head. (4 replies)
  219. bore kits for a 300ex (10 replies)
  220. need help please!!! (4 replies)
  221. clutch suggestions (11 replies)
  222. How many replacing Intake valves (2 replies)
  223. 300 ex not running good (4 replies)
  224. Part 2 of my jetting saga... (11 replies)
  225. Adjusting engine to TDC (12 replies)
  226. Help? I modified a 400ex to a 465 stroker with opened airbox+WB r4+powerbomb header (2 replies)
  227. Help? Is my 1999 400ex geared different than 2000-2003 (6 replies)
  228. I Need Help!!!!!!!!!!! (6 replies)
  229. For peoplewith service manuals! (2 replies)
  230. Hot cam (3 replies)
  231. Stage 1 dg xcellerator (1 replies)
  232. New Bearing Carrier (4 replies)
  233. crab and flywheel. Need help!!! (5 replies)
  234. chains which one? (2 replies)
  235. 416- Stronger Valve Springs?Y/N (9 replies)
  236. AVgas (8 replies)
  237. 400 Dmc (5 replies)
  238. trx 250x cams (1 replies)
  239. 440EX got beat! (62 replies)
  240. Sprockets?? (8 replies)
  241. dead kick in 250"" (8 replies)
  242. i cant get my bearings out (4 replies)
  243. Help! wont idle (6 replies)
  244. put my big gun on today (8 replies)
  245. Please Help, its april Vacation! (15 replies)
  246. What plug in 250r (9 replies)
  247. 416 bore and stroke (14 replies)
  248. Spark Plug Question (0 replies)
  249. Lonestar axle (13 replies)
  250. Will this axel work? (2 replies)