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View Full Version : Honda TRX 400EX & 400X ATV Info



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  1. fst 500 big bore stroker info (2 replies)
  2. 400ex wont start (6 replies)
  3. hmf quiet core (3 replies)
  4. Setting the Valve Clearances for Hotcam (7 replies)
  5. 400EX Jetting Help (5 replies)
  6. modded 400ex gearing? (5 replies)
  7. adjusting valves.(special feeler gauge needed? (6 replies)
  8. Have you looked at your wiring harness?? (14 replies)
  9. New to k&n filters, have a question (19 replies)
  10. clutch (16 replies)
  11. Oil in my airbox!!! (4 replies)
  12. 400ex (30 replies)
  13. Unmarked Jet (1 replies)
  14. Exhaust (13 replies)
  15. Handling/stability (14 replies)
  16. hinson fiber plates? (1 replies)
  17. Help!! (8 replies)
  18. Wont start?? (15 replies)
  19. Electrical Problem on my 440 Red and Black Build (9 replies)
  20. lol talk about werid jetting. plz read jetting guys (5 replies)
  21. swing arm pivot bolt removal (30 replies)
  22. Rear brake hub loose on axle (14 replies)
  23. 450r jets (2 replies)
  24. jet question?? (2 replies)
  25. +7 swingarm 400ex (21 replies)
  26. 450R rear shock and linkage (10 replies)
  27. Linkage for EX400 with Elka rear shock (3 replies)
  28. Hinson Fiber Plate differences????i dont know (2 replies)
  29. oil tank and cooler (4 replies)
  30. Looking at my Cam Chain tensioner 400EX (10 replies)
  31. 08+ nerf bars (2 replies)
  32. TRX400EX help!!! (9 replies)
  33. another "no start" (6 replies)
  34. new main jet nessisary?? (3 replies)
  35. rev limiter (4 replies)
  36. headlights (2 replies)
  37. A.a.d.s (15 replies)
  38. works shocks (4 replies)
  39. 400EX Smoking after oil change (20 replies)
  40. Head pipe question (13 replies)
  41. engine break in, cant seem to find any when i searched? (13 replies)
  42. Does houser make an EX swingarm?? (7 replies)
  43. Whats the best twist throttle? (7 replies)
  44. Running V tread front tires anyone???? (0 replies)
  45. works triple rates (7 replies)
  46. I need ideas for a custom vented hood (16 replies)
  47. 406ex vs. 400ex (17 replies)
  48. 450r front shocks conversion??? (19 replies)
  49. size tires for 400ex (2 replies)
  50. 450r rear shock vs 400ex (7 replies)
  51. 2005 TRX 400EX - Clutch Slipping Issue (20 replies)
  52. clutch levers (10 replies)
  53. Oil Leak (5 replies)
  54. valve ajustment (6 replies)
  55. 2007 trx400ex (11 replies)
  56. Look what i found... (6 replies)
  57. reverse leaver (39 replies)
  58. Hmm...I wonder? (5 replies)
  59. rims (3 replies)
  60. 440ex (13 replies)
  61. front bumper (2 replies)
  62. ino its in the wrong thred but.... (18 replies)
  63. Finally put the battery in the air box (23 replies)
  64. Steering Stem (3 replies)
  65. 2500 lbs winch is installed (13 replies)
  66. Rear axel nut (1 replies)
  67. 450R carb Jets.... (9 replies)
  68. Rear Shock Linkage (need photo) (5 replies)
  69. Smoke after oil change (1 replies)
  70. Cant decide...11:1 or 10:1 (47 replies)
  71. Idle problems... and more.. (2 replies)
  72. bleeding brakes (6 replies)
  73. need rebuild help (1 replies)
  74. talk about reliability (13 replies)
  75. idle (1 replies)
  76. 426 ? (6 replies)
  77. valve noise tick tick tick (14 replies)
  78. hmm interesting (9 replies)
  79. 450r shock issues??? what do you guys think? (30 replies)
  80. In case anyone is interested (0 replies)
  81. Exhaust baffle... has got me baffled... (1 replies)
  82. 400ex taking long to start (3 replies)
  83. just so poor customer service (2 replies)
  84. 250r hood (9 replies)
  85. 450r carb (2 replies)
  86. K&N powerlid ? (2 replies)
  87. Spark Plug Chops and Jetting (3 replies)
  88. 450r carb jetting guideline help (3 replies)
  89. Look what my dad picked up(pic) (14 replies)
  90. More problems with 250r axle in 400 (13 replies)
  91. 416 vs 700 raptor (22 replies)
  92. hood on stock plastics or nacs headligt cover post pics (11 replies)
  93. 407cc or 416cc? (9 replies)
  94. 400ex pipe (2 replies)
  95. Valve train Issue, 416 build (19 replies)
  96. 400 vs 416 (12 replies)
  97. swing arm bearing replacement turns into full blown build (7 replies)
  98. First ever rebuild! (5 replies)
  99. vavle tap (2 replies)
  100. 400EX hood (4 replies)
  101. How?! (7 replies)
  102. Help for a fellow Red rider (12 replies)
  103. CP, Wiesco, or JE 11:1 pistion? (5 replies)
  104. choke mod and running rich/lean/perfect???? (11 replies)
  105. alignment question (10 replies)
  106. Who's the guy that put the 450r rear fenders on 400ex? (0 replies)
  107. adjusting 2004 stock suspension (16 replies)
  108. need answer!!?? (40 replies)
  109. 450 carb? (5 replies)
  110. brake master upgrade? (45 replies)
  111. title ??? (1 replies)
  112. Odd chunk noise? (12 replies)
  113. 05 07 maier plastics on a 02 help!!!! (4 replies)
  114. what you guys thin of this clutch basket?? (1 replies)
  115. 4 wire ignition 2007 400ex (0 replies)
  116. Owners of CCP (and other PUCK style) Steering Stabilizers (14 replies)
  117. 416ex build (6 replies)
  118. What fits??? (3 replies)
  119. 400ex rear sok (1 replies)
  120. anyone ever swap a 600 cc motor into their quad? (20 replies)
  121. Check my plug... (15 replies)
  122. selling question (1 replies)
  123. Axle Bearings (49 replies)
  124. need help with mods (19 replies)
  125. pro taper help (7 replies)
  126. 416 Valve Noise... (18 replies)
  127. Yea yea...another 400ex jetting thread (4 replies)
  128. Bad shocks??? (2 replies)
  129. cylinder head alignment dowels (6 replies)
  130. HELP... clutch not engaging right (10 replies)
  131. need awnser qwick (8 replies)
  132. Rotella 15w-40 oil in colder weather? (4 replies)
  133. backfire when try to start (11 replies)
  134. question?? and little update (4 replies)
  135. Plastics (12 replies)
  136. f/a screw???? (8 replies)
  137. tuning help??? (12 replies)
  138. anyone run mud tires? (7 replies)
  139. WTF??? Special Screw??? come on.... (10 replies)
  140. pro armor kill switch (8 replies)
  141. Help !!! (9 replies)
  142. Engine Noise / Runs harsh after 3/4 throttle (11 replies)
  143. 400ex carb - jetting (5 replies)
  144. brake problem, help quick (3 replies)
  145. aftermarket 400ex header (30 replies)
  146. Best tires for mud/trail riding? (15 replies)
  147. still not sure? (7 replies)
  148. 500ex (40 replies)
  149. Intake valve adjustment. (3 replies)
  150. clutch grinding??? (12 replies)
  151. start up question (5 replies)
  152. simple jetting question (9 replies)
  153. steering stem (2 replies)
  154. 400ex and 250r rear rotor the same? (0 replies)
  155. truth about hot cam valve noise??? (15 replies)
  156. ring ?? (3 replies)
  157. 400ex idles but no throttle (3 replies)
  158. time for brake pads (2 replies)
  159. 450r carb on 440ex PERIOD!!!! (3 replies)
  160. if it aint broke, dont fix it...? (7 replies)
  161. Search Function (24 replies)
  162. Polishing engine (4 replies)
  163. rear brake sticking! (10 replies)
  164. hid headlight upgrade (7 replies)
  165. Does not like to run till it's 100% warmed up... (12 replies)
  166. 400ex freestyle (12 replies)
  167. changing the oil lol (25 replies)
  168. Air shroud?? (3 replies)
  169. 400 ex camshaft (9 replies)
  170. Motor Help ?? (13 replies)
  171. lights (3 replies)
  172. who has timing key and hi comp (1 replies)
  173. Auto-clutch (23 replies)
  174. 400ex (20 replies)
  175. Show us your Custom Cooling Setups? (9 replies)
  176. Stupid cam chain tensioners (18 replies)
  177. 490? (21 replies)
  178. quick octane/compression question (9 replies)
  179. help with checking bearings (10 replies)
  180. I need a picture... (5 replies)
  181. Manual cam chain tensioner (16 replies)
  182. A year outta the game, and here i am!! (29 replies)
  183. Electical troubleshooting...need help (45 replies)
  184. Steering stem interchangeability (4 replies)
  185. stem question????? (4 replies)
  186. Success!!!! (9 replies)
  187. brake lines (4 replies)
  188. 400ex trade for banshee??? (21 replies)
  189. member needs help with cr 125 (6 replies)
  190. clutch cable (6 replies)
  191. Swtiched up thee old start button on the beast.. (6 replies)
  192. Axle bearings? (4 replies)
  193. Need help after top end install (28 replies)
  194. SRP TITAN Steering Stabilizer...... (15 replies)
  195. 400ex nerfbars on KFX400? (2 replies)
  196. Help with getting a title in ohio? (9 replies)
  197. Good, decent priced nerf bars (11 replies)
  198. Bothered by Another problem.. (4 replies)
  199. cylinder base Oring? (3 replies)
  200. Anyone swap 450r shocks onto their 400? (7 replies)
  201. bargainers,fabricators,deal finders (6 replies)
  202. helpppppp!!!!!!! (16 replies)
  203. anti-sieze on engine assembly? (7 replies)
  204. Adding reverse to 99-04 (4 replies)
  205. chain slack (1 replies)
  206. Engine Assembly Lube, Molybdenum or no? (3 replies)
  207. Topping off oil: Dumb Question??? (3 replies)
  208. carb help (6 replies)
  209. a arms? (5 replies)
  210. rebuild pics (2 replies)
  211. Will 450 A-arms Fit the 400ex? (2 replies)
  212. its official (2 replies)
  213. bumper (6 replies)
  214. Gt thunder stroker engine (5 replies)
  215. post you jetting specs (12 replies)
  216. jetting help (7 replies)
  217. any ideas (10 replies)
  218. white brothers cam? (8 replies)
  219. Jetting (9 replies)
  220. I think I found the reason for engine failure (3 replies)
  221. 400ex rebuild in WV (11 replies)
  222. 250R RPM Dominator Axle ? (6 replies)
  223. 400ex Sub-Frame mods? (15 replies)
  224. 400ex axle (1 replies)
  225. Rotella 15 40... (31 replies)
  226. jets r us jet kit ... (4 replies)
  227. What clutch lever/perch are you running? (10 replies)
  228. 400ex engine work and other (4 replies)
  229. Starter Button? (16 replies)
  230. gaskets (2 replies)
  231. 250r and 400ex swingarms (2 replies)
  232. Parts for sale (0 replies)
  233. will 250r plastic work on a 400ex (1 replies)
  234. tires tires tires (11 replies)
  235. 400ex stock shock length? help (2 replies)
  236. Turbo?? (10 replies)
  237. parts (0 replies)
  238. exhaust clamp for Pro circuit T4 (20 replies)
  239. Pro X jets (14 replies)
  240. 400ex build for the wife (17 replies)
  241. dyno room (23 replies)
  242. Feeling a build coming:) (23 replies)
  243. DK coupons (2 replies)
  244. Old red broke her leg! (10 replies)
  245. great deal!!! (0 replies)
  246. Oil filter bolt threads stripped... (23 replies)
  247. Winter rebuild (36 replies)
  248. tire beads? (4 replies)
  249. Yet another 400ex smoking ? (17 replies)
  250. Rear brake upgrade? (4 replies)