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  1. ? on motor work? (14 replies)
  2. Info on 400EX 440 kits (4 replies)
  3. how to, untap?? (7 replies)
  4. port work... (2 replies)
  5. race gas????? (3 replies)
  6. best carb for 400? (7 replies)
  7. Airbox lid??? (11 replies)
  8. running way lean!!!!!HELP!!!!! (13 replies)
  9. Barnett clutch kit? (3 replies)
  10. 440 Kit Carb? (6 replies)
  11. part number for selenoid? (2 replies)
  12. fmf pc IV s/a, need silencing advice (6 replies)
  13. Dropped valve on 400ex...HELP (4 replies)
  14. Race gas for R (2 replies)
  15. thoughts on tc and sparks exhausts? (1 replies)
  16. Plugs and leaded gas... (8 replies)
  17. carb (13 replies)
  18. ? on axle install (9 replies)
  19. rebuild kit for a 39fcr ? (2 replies)
  20. easiest ways to take off the axle lock nut? (12 replies)
  21. disks on 4 stroke exaust's (7 replies)
  22. 1993 300ex starter key, missing (5 replies)
  23. starter slips, wont start!!! (0 replies)
  24. 250r Paul turner pipe question (2 replies)
  25. engine swap into my crap quad? (2 replies)
  26. jetting for sparks exhaust on 300ex (1 replies)
  27. sparks exhaust sound clip(300ex) (0 replies)
  28. stock exhaust mod (13 replies)
  29. best exhaust,sparks or ct racing? (8 replies)
  30. 400ex head work experiences? (1 replies)
  31. white brothers powerfilter (7 replies)
  32. need help quick (6 replies)
  33. biggun or dmc (11 replies)
  34. 250r pipe shootout (9 replies)
  35. XR only "HRC copy cam"??? (12 replies)
  36. what oil in my 250R?? (5 replies)
  37. exhaust question(quick reply)! (4 replies)
  38. taking top end apart on 300ex (2 replies)
  39. UNI question (3 replies)
  40. Rejet w K&N (2 replies)
  41. how to take off the axle (11 replies)
  42. clutch levers (0 replies)
  43. pipe (2 replies)
  44. Magura - What type of oil (2 replies)
  45. 250r guys please help. (6 replies)
  46. Magura Hydraulic Clutch? (14 replies)
  47. can you put reverse on stock 400ex? (13 replies)
  48. FINALLY - an aftermarket oversized oil cooler kit (9 replies)
  49. 440 Question (13 replies)
  50. cold starting (14 replies)
  51. 440 kit- do i have to run racing fuel even if i get a bigger oil cooler (7 replies)
  52. help 416 motor setups (7 replies)
  53. HMF Exhaust/FCR carb jetting (10 replies)
  54. Sparks or K&N??? (4 replies)
  55. Crf450 Yzf450 Yzf426 Wr450f????? (7 replies)
  56. White Bros Rev/CDI Box? (11 replies)
  57. headgaskey for a440? (1 replies)
  58. exhaust packing (0 replies)
  59. 330 Kits (10 replies)
  60. 500cc Stroker Kit (4 replies)
  61. cr250 cylinder (2 replies)
  62. by the way (0 replies)
  63. LRD Pro 4 Seris question? (3 replies)
  64. 300 problems (1 replies)
  65. Best Bore Kit???........ (3 replies)
  66. breakin time? (2 replies)
  67. New Plan!!!! (4 replies)
  68. Piston? (20 replies)
  69. Difference between 400EX and Z400 (9 replies)
  70. alumiumn air box (14 replies)
  71. lrd slip on? (4 replies)
  72. Rear bearing kit install? (1 replies)
  73. Chain Roller and sliders (1 replies)
  74. Rejetting Question - Should be easy. (7 replies)
  75. Head Gaskets (7 replies)
  76. cdi unit (0 replies)
  77. What kind of tools will i need-440 kit?? (12 replies)
  78. Stroke measurement? (3 replies)
  79. Edelbrock Carbs and Customer Support (0 replies)
  80. Swingarm bolt siezed please help!! (19 replies)
  81. wheres the ari fuel mixture on the carburator for the 400ex (4 replies)
  82. popping when i let off the gas (7 replies)
  83. Hey guys what do you think (8 replies)
  84. got it (4 replies)
  85. 400ex Carb On a 300ex (17 replies)
  86. jetting for pro circuit t-4 (10 replies)
  87. Sprockets (1 replies)
  88. 600cc Quad (7 replies)
  89. jetting for galmis (0 replies)
  90. HELP! My Yoshi is fubared! (6 replies)
  91. Engine calculator (1 replies)
  92. What to put on my base gasket? (1 replies)
  93. JE 426 11.1 is pump gas oK? (14 replies)
  94. Drag race results with new HMF (8 replies)
  95. air box replacement (4 replies)
  96. main jet adaptor (6 replies)
  97. jetting? (2 replies)
  98. 250r axle (0 replies)
  99. Adjust valves (6 replies)
  100. Plug is white ... what next? (2 replies)
  101. 450r or yfz450 (22 replies)
  102. Is an oil cooler necessary? (11 replies)
  103. Old or new big gun??? (3 replies)
  104. stage 2 hot cam loss in low end? (20 replies)
  105. Reliability?? (1 replies)
  106. Steel base gasket? (1 replies)
  107. 39 fcr needles emp vs. stock (4 replies)
  108. help need info on buying gaskets (4 replies)
  109. Question about knocking / tapping sound in engine. (15 replies)
  110. Removing Motor from frame (5 replies)
  111. Jetting help!? (3 replies)
  112. fmf power bobm header (8 replies)
  113. 400ex hubs on a 250x? (1 replies)
  114. carb problems (8 replies)
  115. New 250EX transmission noises? (7 replies)
  116. 250X reverse gears mod (8 replies)
  117. 250r Jetting (13 replies)
  118. top end gaskets (3 replies)
  119. Anyone looking for a NEW TRX250R? (14 replies)
  120. Timing, and jetting settings (3 replies)
  121. clutch problems (17 replies)
  122. 440ex e-series jetting (4 replies)
  123. Help me with LT230E (0 replies)
  124. still confused (4 replies)
  125. low end boost (24 replies)
  126. XR650 motor (2 replies)
  127. will i need to do anything to the carb??? (2 replies)
  128. performance upgrade question (7 replies)
  129. stock 400ex speed? (1 replies)
  130. DB Levels (1 replies)
  131. best big name motor shops (8 replies)
  132. Is my counter-ballance off? (13 replies)
  133. reausable oil filters (3 replies)
  134. 350x wiring (2 replies)
  135. HMF exhaust... (5 replies)
  136. My Jetting (51 replies)
  137. POst ur pics here of any thing wit an engine (5 replies)
  138. fastest quad (21 replies)
  139. Scratches on Sidecase (1 replies)
  140. how reliable is your 440? (8 replies)
  141. trouble w/puttin exhaust on!(please help) (14 replies)
  142. Clicking (14 replies)
  143. Big Gun Race Exhaust (2 replies)
  144. types of hubs on dura blue axle? (2 replies)
  145. ok now what (8 replies)
  146. which WB exhaust is a full exhaust? (4 replies)
  147. buying a used 440 kit (9 replies)
  148. best pipe 4 my 300ex??? (5 replies)
  149. Motor Work for my 330 (4 replies)
  150. FMF Megamax2 vs WB E Series. (6 replies)
  151. CRF450 Engine Swap (1 replies)
  152. should i see good gains...? (6 replies)
  153. curtis sparks 300ex exhaust jetting (0 replies)
  154. 250x kick starter on 300ex engine (5 replies)
  155. 250x HELP!!! (5 replies)
  156. Electrical problem fixed!-answer- (3 replies)
  157. emergency (5 replies)
  158. check this out (9 replies)
  159. TC Racing camshaft specs (17 replies)
  160. FDO racing (1 replies)
  161. Hinson (4 replies)
  162. 300ex wiring diagram (4 replies)
  163. Took the head off today and this is what i see? (3 replies)
  164. eSeries just came! Question. (11 replies)
  165. more power (4 replies)
  166. help quick (3 replies)
  167. neutral light won't come on.... (6 replies)
  168. 350x Jetting (1 replies)
  169. 4-snow tires (1 replies)
  170. clutches? (7 replies)
  171. 440 strokin (2 replies)
  172. what compression to use on 440 kit? (11 replies)
  173. Help - Spark Plug wont go back in (6 replies)
  174. starter blow up (1 replies)
  175. What ao i need to make a 400 a 416?? (4 replies)
  176. Y would u remove the choke?? (5 replies)
  177. shift fork/bottom end (3 replies)
  178. changing my gears how much would it cost? (9 replies)
  179. sproket size (10 replies)
  180. block off plate (3 replies)
  181. Best Pipe For Xc (0 replies)
  182. what is the part where the engine builder engraves their name on the motor (5 replies)
  183. How can I tell if my flywheel has been lightened? (2 replies)
  184. jetting question (2 replies)
  185. 300ex problems (3 replies)
  186. K&N or UNI???? (2 replies)
  187. CBR600 Motor in 400Ex Frame (26 replies)
  188. Cam 2 (1 replies)
  189. headers for white brothers (12 replies)
  190. Best clutch? (4 replies)
  191. big bore for trail/mx? (7 replies)
  192. liquid cooled 400ex (23 replies)
  193. FDO 463 Kit or other bigger bore motors. (1 replies)
  194. removing stuff?? (7 replies)
  195. hmf vs lrd (18 replies)
  196. stock jet with new pipe (4 replies)
  197. any input appreciated (4 replies)
  198. Really need your help! (11 replies)
  199. plug check (9 replies)
  200. What kinda oil (12 replies)
  201. 300ex Gussets (2 replies)
  202. electrical problem (1 replies)
  203. Outerwear airbox lid? (11 replies)
  204. starting in gear? (3 replies)
  205. pilot jet (8 replies)
  206. HELP question on 440 kit (4 replies)
  207. test cdi box? (2 replies)
  208. sparks racing x6 (9 replies)
  209. (Help) 400ex header question (4 replies)
  210. 250ex (5 replies)
  211. CT RACING Pro-X Cyclinder kit (16 replies)
  212. jetting help (6 replies)
  213. white brothers or curtis sparks (8 replies)
  214. 416 or 426 (6 replies)
  215. RPM dominator questions (3 replies)
  216. ex400 piston pin (1 replies)
  217. Electrical Stumper (10 replies)
  218. DG Stage 3 Xccelerator (2 replies)
  219. Jetting Question (10 replies)
  220. runs like crap after anything more than 1/4 throttle...popping and black smoke galore (15 replies)
  221. 400ex Slip-on exhaust issues!! (5 replies)
  222. 300ex motor work (2 replies)
  223. Sparks carb modification? (12 replies)
  224. Which kind of chain and what size? (21 replies)
  225. 416 Motor Help (16 replies)
  226. 400ex engine into 250x frame - has it or can it be done? (12 replies)
  227. cr500 engine in 250r frame? (25 replies)
  228. Pro design kill switch on EX (1 replies)
  229. Can i run pumped gas on 440ex 11:1 or do i have to go with 10:3.1 (13 replies)
  230. White Brothers Exhaust (6 replies)
  231. Dual Exhaust (5 replies)
  232. hmf exhuast pics (2 replies)
  233. shifting and clutching question (10 replies)
  234. hmf pipe does not fit (8 replies)
  235. will a 400ex a/m axle fit on my 300ex? (6 replies)
  236. What pipe is best for the money for 400ex (14 replies)
  237. 300ex sprockets (3 replies)
  238. Oil?? (4 replies)
  239. Got a question. (8 replies)
  240. what kind of motor for 250r should i do? (6 replies)
  241. carb selection (5 replies)
  242. need help on a question on the clutch (3 replies)
  243. gearing (0 replies)
  244. can colby get stock 39fcr needles ? (4 replies)
  245. Sparks Timing Advance Key (2 replies)
  246. FMF Powerbomb Header?? (3 replies)
  247. Strokin a 440? (21 replies)
  248. Oil leak (5 replies)
  249. another request for expert jetting question (2 replies)
  250. stator output 400ex (2 replies)