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  1. found out that my ex has a amazing 22.1 HP. (10 replies)
  2. je piston (1 replies)
  3. Question for ya`s (9 replies)
  4. Whats Wrong? (11 replies)
  5. cam for 300 (5 replies)
  6. Help!!!!!!!! (17 replies)
  7. Best Oil For Stock 400EX (6 replies)
  8. dang! (18 replies)
  9. what do you think about 300ex?? (9 replies)
  10. jetting for 416? (1 replies)
  11. Backfire (6 replies)
  12. 250X High Comp. Piston (6 replies)
  13. Help, Backfire` (1 replies)
  14. Recpn Engine Problems!!! Help (0 replies)
  15. WB all round cam and 10.8 or 11.1 pistion sound good for a 416/ or 426??? (16 replies)
  16. White Bros R4, Supertrapp, Yoshimura (2 replies)
  17. my Honda\Yama. dealer told me the best oil is YamaLube! (1 replies)
  18. Question on rev kit for a 300ex!! (3 replies)
  19. Another Jettin Question (2 replies)
  20. FMF Ti-4 Slip-On (1 replies)
  21. still reads lean, help!!! (18 replies)
  22. 416 or 425 (23 replies)
  23. TC Racing exhaust - MX? (11 replies)
  24. 440 or 416 (14 replies)
  25. Air Box Question (9 replies)
  26. wat jet to go with (7 replies)
  27. Blown Gasket!! on 2002 300ex (11 replies)
  28. Engine Building? (2 replies)
  29. nerf bars (4 replies)
  30. Aftermarket cam and stock rocker question (8 replies)
  31. best engine mods (2 replies)
  32. how is the yohimura slip on for a 250ex? (0 replies)
  33. Cold start prob with new 400EX (11 replies)
  34. white bros exhaust (1 replies)
  35. Bored over Question? (6 replies)
  36. help me stroked 465 and ex marlin (4 replies)
  37. Lectron, FCR,...BIGGER CARBS (14 replies)
  38. 416 (2 replies)
  39. white brother end caps or other disc exhaust question (4 replies)
  40. Cylinder head cover (1 replies)
  41. Not another exhaust thread! (1 replies)
  42. Exact oil measurement?? (1 replies)
  43. HMF exhaust info. (9 replies)
  44. Oil Oil Oil (2 replies)
  45. Outerwears air box lid (10 replies)
  46. Honda HP4 10W-40 (13 replies)
  47. 300EX gearing (4 replies)
  48. KN filter outerwear (3 replies)
  49. Carb Rebuilds (2 replies)
  50. CDI Box, is there a way to make it work (13 replies)
  51. Best Port Job???? (1 replies)
  52. 330ex or stock with mods (4 replies)
  53. Just A Little Question (3 replies)
  54. were to get xr400 cam (1 replies)
  55. Which exhaust system? (25 replies)
  56. 416 w/ 11:1 (10 replies)
  57. Cams (3 replies)
  58. porting??????? (6 replies)
  59. Sparks Racing (17 replies)
  60. Quiet Pipe ??? (34 replies)
  61. Need Help!!!! (e-series) (3 replies)
  62. rebuilding my motor (12 replies)
  63. Sprocket Sizes? (4 replies)
  64. 440 Jetting (0 replies)
  65. Aftermarket cam and decompressors on 400EX (4 replies)
  66. 300ex parts on 250x? (7 replies)
  67. Burning Oil? (4 replies)
  68. help i need a pipe!!! (1 replies)
  69. Marcum's ATV (1 replies)
  70. starter brushes... (2 replies)
  71. HMF Engineering??? Pipes for 300ex and 250EX, The same?? (5 replies)
  72. 440 smokin (13 replies)
  73. REV Limiter??? (21 replies)
  74. removing choke? (2 replies)
  75. Carb jetting issues (3 replies)
  76. 8 Clutch plate system, what components? (21 replies)
  77. best power output (6 replies)
  78. Whats the carb for a 400ex (6 replies)
  79. xr400 question (0 replies)
  80. jetting changes for xr400 cam (2 replies)
  81. Intake (1 replies)
  82. 440 Kit (2 replies)
  83. 400EX or XR250 (1 replies)
  84. xr 400 cam valve adjustment (1 replies)
  85. Hrc cam (24 replies)
  86. Lectron carb question (0 replies)
  87. Curtis Sparks Pipe? (13 replies)
  88. White Brother R4 (4 replies)
  89. Modding A Stock Carb (12 replies)
  90. new model FMF pipe!! (2 replies)
  91. slip-on (3 replies)
  92. DMC full system (7 replies)
  93. 400ex ring gap (1 replies)
  94. Fresh 440, something's missing (9 replies)
  95. FMF Ignition (2 replies)
  96. xr400 cam queston about break in (2 replies)
  97. Cams and Carbs (1 replies)
  98. Adjusting fuel jet (1 replies)
  99. Clutch (8 replies)
  100. 400 is smoking (2 replies)
  101. help cam ? (2 replies)
  102. New Hetrick Racing Honda Seat Latches! (13 replies)
  103. cam? (6 replies)
  104. Is the 440 no good?? (3 replies)
  105. Xr400??? (9 replies)
  106. 400ex oil (31 replies)
  107. t-4 for 250ex (4 replies)
  108. XR 400 Cam Problem (7 replies)
  109. which pipe would help more in selling my quad (14 replies)
  110. K&N Jet Kit Stage1&2 (7 replies)
  111. My sleeper 300ex (7 replies)
  112. 416 mod (6 replies)
  113. Pingry's website!! (1 replies)
  114. Still wont start? Please help (0 replies)
  115. CR250 intake and reeds on a 250r (4 replies)
  116. Hi Compression Piston Part # (1 replies)
  117. Thanks abunch (3 replies)
  118. finaly got my 406 running..... (6 replies)
  119. Still won't start? Please Help (6 replies)
  120. Looking for 440 information none on this site? (1 replies)
  121. ProCircuit T4 Tips (6 replies)
  122. 400ex hi comp. pistons (1 replies)
  123. White Bros. E Series Exhaust (18 replies)
  124. What mods to make a 400EX run with a Raptor and Banshee? (4 replies)
  125. New Hetrick Racing 400ex Pipe and Silencer (21 replies)
  126. I change my mind too often! (3 replies)
  127. What engine mods for the winter? (8 replies)
  128. 300ex rev limiter Q's (3 replies)
  129. Stock Exhaust (5 replies)
  130. Kickstart (1 replies)
  131. what carb for 300ex (1 replies)
  132. best performing pipe for 300ex (2 replies)
  133. xr 400 6 speed (3 replies)
  134. hrc piston (1 replies)
  135. oil pump (1 replies)
  136. wHiCh is FaSter?!? (31 replies)
  137. What are the best mods for a 300ex? (5 replies)
  138. hott plugg (15 replies)
  139. xr cam (1 replies)
  140. Gaskets what are the best (1 replies)
  141. Xr's only HRC Copy/GT Thunder/XR400 (13 replies)
  142. where to get sparks advance timing key? (4 replies)
  143. Advise on upgrades (11 replies)
  144. xr400 6 speed (14 replies)
  145. 250EX valve clearance? (5 replies)
  146. Gearing (1 replies)
  147. 400ex HP?? (1 replies)
  148. 420EX update, part 2 (9 replies)
  149. 440 head gasket (1 replies)
  150. White Bros. R4 exhaust tip (1 replies)
  151. Rev-er-up Engine Metal Conditioner (1 replies)
  152. Still have an engine problem, please help (5 replies)
  153. Reading plugs (5 replies)
  154. Regearing a 90 (6 replies)
  155. Question on silencer and plugs (6 replies)
  156. Timing Key (2 replies)
  157. GT Thunder cam (2 replies)
  158. 400 EX flywheel (1 replies)
  159. Cr Perch!again? (4 replies)
  160. ProLong and Dura Lube (7 replies)
  161. would this work? (oil change) (2 replies)
  162. pipe on 250x ? (2 replies)
  163. 400ex > 440ex (1 replies)
  164. ok... my stock exaust is creeping me out... dent in silencer. (3 replies)
  165. 406/416 question (8 replies)
  166. air box filter vents? (12 replies)
  167. outer wer pre-filters (4 replies)
  168. Where to Buy High Comp. Piston? (3 replies)
  169. Stock jetting on a 400EX anyone know what it is? (15 replies)
  170. 440 kits (2 replies)
  171. engine case polishing (31 replies)
  172. JE416 + HRC Copy Cam = ? (0 replies)
  173. what should i do to my 300 ex (9 replies)
  174. k&n power kit for a honda 250ex? (0 replies)
  175. DO you think i choosed the right one (3 replies)
  176. Exhaust end cap on 250ex (10 replies)
  177. Valve adjustment Question?? (4 replies)
  178. Noise! (6 replies)
  179. xr400 cam change can you (3 replies)
  180. what is your favorite out of these quads (6 replies)
  181. 400ex pipes? (6 replies)
  182. bought 2002 300ex today nd starter is acting up...... (8 replies)
  183. Clutch (2 replies)
  184. Oil tank opening...... (7 replies)
  185. Sparks ignition key vs XR 400 ignition key (9 replies)
  186. Hey 400EXJOE, heres a pic of part of one of our toys (8 replies)
  187. Pro Circuit T-4 (4 replies)
  188. oil tank (2 replies)
  189. crf450 spark plug (0 replies)
  190. race gas (9 replies)
  191. Spark Plug Gap, urgent, need help like today... (4 replies)
  192. stroking an engine? (15 replies)
  193. 330ex kit? (14 replies)
  194. 250X compression ratio??? (2 replies)
  195. White Brothers? (8 replies)
  196. what would be the best pipe for a stock 300ex (21 replies)
  197. What gaskets (3 replies)
  198. Need 250R engine specs (4 replies)
  199. 440 piston and cylinder installation (4 replies)
  200. 420EX update (32 replies)
  201. Cam Brand (1 replies)
  202. 350X cam size (0 replies)
  203. 400ex carb question (2 replies)
  204. what is the best aftermarket pipe for a 250? (2 replies)
  205. Curtis Sparks Advance Key (5 replies)
  206. piston questions? (5 replies)
  207. Smoking (5 replies)
  208. 400ex carb (5 replies)
  209. Backfiring at start up? (4 replies)
  210. Alcohol Injected 400EX (8 replies)
  211. What carb comes stock on a 86 250R (8 replies)
  212. Help....Twist Throttle (6 replies)
  213. Which cam should I use (12 replies)
  214. Clear Snorkle on 400ex? (7 replies)
  215. Not another jetting queston!!! (8 replies)
  216. Raising A Clutch Shifter? (Thick Boots!) (8 replies)
  217. hp for 300ex (10 replies)
  218. how much power 416, 440 (6 replies)
  219. is a high comp piston worth it? (26 replies)
  220. Complete Big Gun System (3 replies)
  221. xr400 cam (2 replies)
  222. Kids 90 automatic not changing gears? (5 replies)
  223. What jetting to use with a T4, K&N, XRCAM (7 replies)
  224. jetting (2 replies)
  225. any help on cool eng mods for the 250x (4 replies)
  226. 250x v/s warrior (1 replies)
  227. Gas cap hose (2 replies)
  228. Help.....Twist Throttle Installation (1 replies)
  229. 440, 416, cam??? (5 replies)
  230. nitorous for sale on ebay (4 replies)
  231. XR vs. HRC cam (5 replies)
  232. Curtis Sparks Bolt on Kit (5 replies)
  233. whic jet kit is best?? K&N, dynojet, other?? (23 replies)
  234. Cr Perch (4 replies)
  235. 400ex oil cooler - Bigger Please (9 replies)
  236. Air Filter (3 replies)
  237. foot pounds (1 replies)
  238. Question on repacking pipes (1 replies)
  239. fmf titanium4 (2 replies)
  240. DG foward mounted oil tank (5 replies)
  241. Anyone Know anything about re-packing WB R-4??? (6 replies)
  242. The TRUTH about WB Rev Box! (4 replies)
  243. installation of 14 tooth fr sprocket (6 replies)
  244. TC`s Cross Country Engine (25 replies)
  245. What do you guys think of octain boosers? (10 replies)
  246. New "Fat Boy 4" exhaust from Duncan Racing (1 replies)
  247. Place In Ohio For Machine Work/installation Of 440 Big Bor And Cam (2 replies)
  248. FMF ignitions (19 replies)
  249. Power loss (5 replies)
  250. 330 jetting? (4 replies)