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  1. Spark Plug wire commin loose? (7 replies)
  2. Running like crap. (6 replies)
  3. 06 450r cam? (2 replies)
  4. crf engine work (4 replies)
  5. air filter spring (2 replies)
  6. Engine kits for 450R? (4 replies)
  7. whats the best exhaust for low end torque? (9 replies)
  8. have a question.. (1 replies)
  9. Trx 250r Airbox/filter (0 replies)
  10. 250x, 12:1 can I use pump gas or do i need race fuel (6 replies)
  11. compression help (2 replies)
  12. rev-max adjustable cdi (2 replies)
  13. two brothers or hmf exhaust (7 replies)
  14. relay on nemesis 100a 100c quad (4 replies)
  15. Predator 90 lost spark (0 replies)
  16. fcr carb for sale (8 replies)
  17. 4-stroke topend rebuild (3 replies)
  18. probs in 1st and 2nd (2 replies)
  19. best new heart (2 replies)
  20. ex400 (6 replies)
  21. yosimura full or spacrks full exhaust on a 400ex? (3 replies)
  22. confused clutch (4 replies)
  23. tire pressure (7 replies)
  24. ohio 450rs (1 replies)
  25. Facts of shorty cans on exhausts; POST PICS! (18 replies)
  26. 01 400ex jeting tips (8 replies)
  27. 250ex pinion gear (0 replies)
  28. Kill tether installation? (0 replies)
  29. wsm pistons (2 replies)
  30. Longer clutch cable 4 a 400ex? (3 replies)
  31. few ?'s about an 04 450r (10 replies)
  32. What do I need? (2 replies)
  33. 250ex valve springs (16 replies)
  34. 300ex Rear Axle Nuts? (2 replies)
  35. 300ex backfiring (4 replies)
  36. Stiff Clutch (3 replies)
  37. PRP Antifade (0 replies)
  38. sunk in river, now no power (7 replies)
  39. predator 500 exuast (4 replies)
  40. quick help (0 replies)
  41. RPM Billet bearing carrier (6 replies)
  42. valve clearnce (4 replies)
  43. crf70f air filter (0 replies)
  44. sprockets (1 replies)
  45. quick question (2 replies)
  46. how to kickstart a 300ex? (2 replies)
  47. how can you find out the correct jetting for mods? (3 replies)
  48. yfz swingarm bolt (2 replies)
  49. no spark - help (6 replies)
  50. XR80R head torque specs needed (0 replies)
  51. Lone star racing bearing carrier? (2 replies)
  52. Lucas Oil (2 replies)
  53. benefits of this gearing. (5 replies)
  54. Whats the proper way to break in a new piston & cam (2 replies)
  55. comparison:HMF sport and HMF ironman... (8 replies)
  56. hotcam/ break in (4 replies)
  57. 300ex chain size (7 replies)
  58. Need some help with my blaster! (8 replies)
  59. clutch instal (7 replies)
  60. Need a good shop (1 replies)
  61. Coolant (1 replies)
  62. What are these? (3 replies)
  63. help, cam chain removal (3 replies)
  64. T-4 Exhaust help (4 replies)
  65. How much power is this? (3 replies)
  66. Chain / Sprocket question (9 replies)
  67. used lectron carb, who knows about them (2 replies)
  68. '03 250EX Sportrax clutch removal ??? (1 replies)
  69. turbo atv (1 replies)
  70. 300ex Oil Cooled? (3 replies)
  71. Blaster kick-start (3 replies)
  72. Polaris (0 replies)
  73. clutch question (0 replies)
  74. I want to make a fire breathing 426. (11 replies)
  75. 416 power loss (3 replies)
  76. 400ex Jetting On My Own: Advice needed (7 replies)
  77. 86 lt250r wont idle (0 replies)
  78. je piston ring help (5 replies)
  79. 97 Honda Foreman 400 (0 replies)
  80. Ok i find this a little bit odd. (3 replies)
  81. Quiet Pipes & Silver Lake MI (5 replies)
  82. curtis sparks timing advance (1 replies)
  83. 300 EX Jetting (0 replies)
  84. How long to replace? (1 replies)
  85. where to buy (0 replies)
  86. Head ?'s Please help a newb. (2 replies)
  87. 400EX Cam/Ignition Timing (6 replies)
  88. removing the choke (6 replies)
  89. Need 250ex pipe help (1 replies)
  90. 250ex pipes (6 replies)
  91. smoking (11 replies)
  92. cam in a 400ex (2 replies)
  93. crf chain install (2 replies)
  94. Engine builders??? Redoing a 250x topend and have questions. (9 replies)
  95. Chain link Q (8 replies)
  96. Help me pick a cam (12 replies)
  97. timing (0 replies)
  98. Powercore4 end cap (3 replies)
  99. 450r jetting (0 replies)
  100. doing a topend for the first time on my own (4 replies)
  101. Will a mega bomb header work with a slip-on? (2 replies)
  102. rev max (3 replies)
  103. how to instal a cam?, 2000 440ex (1 replies)
  104. i just cant get my jetting right for some reason (3 replies)
  105. I Need Some Help (1 replies)
  106. Bad porting by Nmotion? (23 replies)
  107. ok here's the deal (0 replies)
  108. 250X smoking ater rebuild (3 replies)
  109. what exaust should i get for my 400ex (6 replies)
  110. hetrick pipe 300ex (2 replies)
  111. moto4 350 modified (8 replies)
  112. Chain Roller (4 replies)
  113. gearing (1 replies)
  114. 300ex O (0 replies)
  115. RK chain (0 replies)
  116. Help!!! What Is This (2 replies)
  117. 450 king quad back fire (1 replies)
  118. Looking For More Top End?? (1 replies)
  119. 416 vs 440 (19 replies)
  120. Dumb rebuilding questions (5 replies)
  121. lost please help (5 replies)
  122. Mixing old oil with new oil (3 replies)
  123. Fastest Stock Quad? (17 replies)
  124. 1982 Honda 200 atc (2 replies)
  125. crf cam chain (7 replies)
  126. Easy pull throttle cable? (3 replies)
  127. Honda 440ex with 450R carb. Suggestions? (6 replies)
  128. Polaris Scrambler problem (2 replies)
  129. head gasket problems (0 replies)
  130. replacing head gasket (1 replies)
  131. 450r oil (9 replies)
  132. jetting help (2 replies)
  133. Squirting oil/enine problem??? (2 replies)
  134. head questions (1 replies)
  135. stock 450r carb (1 replies)
  136. sprocket hub (5 replies)
  137. Carb questions (3 replies)
  138. Cleaning a K&N Style Filter (7 replies)
  139. Gas and octane longevity (6 replies)
  140. fmf Q (2 replies)
  141. edelbrock carb please help (2 replies)
  142. timing a dirtbike (4 replies)
  143. 450r bogging (2 replies)
  144. Atc (1 replies)
  145. 300ex carb (4 replies)
  146. Quick question. (0 replies)
  147. I really need to know! (1 replies)
  148. '86 TRX 250 carb help...please! (8 replies)
  149. 400ex carb (1 replies)
  150. polaris trailboss upgrades (5 replies)
  151. Front ATC tire question (2 replies)
  152. Clutch LTZ 400 (1 replies)
  153. sprocket Q (3 replies)
  154. CRF50 Valves (1 replies)
  155. TC Nationals 926 (0 replies)
  156. jetting please help (4 replies)
  157. 400ex What Clutch??? (2 replies)
  158. pro circuit t4... (2 replies)
  159. 700 Exhaust questions????? (2 replies)
  160. 300ex sputter (1 replies)
  161. 300ex wont start!!! (0 replies)
  162. chain Q (7 replies)
  163. axel/carrier need help (23 replies)
  164. 440ex Cam Question (1 replies)
  165. whats the difference? (4 replies)
  166. crank shaft to crank bearing can i buy oversized? (1 replies)
  167. please help??????????????????????? (3 replies)
  168. trx450r cam dial in (0 replies)
  169. valve sticking? (9 replies)
  170. TRX 90 emissions stuff...? (0 replies)
  171. Aftermarket Stator? Good or Bad (4 replies)
  172. piolet jet (1 replies)
  173. 400ex Which Exhaust? Yoshi, DG, Curtis or FMF? (7 replies)
  174. yz 426 timming (1 replies)
  175. Engine ?'s (11 replies)
  176. Question on performance mod for 400ex (19 replies)
  177. 2007 250ex exhaust help (2 replies)
  178. front sprocket replacement, help! (2 replies)
  179. jetting HELP! (1 replies)
  180. should i ride with my snorkel and air box lid on or off? (2 replies)
  181. 07 trx250ex (2 replies)
  182. bearing carrier (2 replies)
  183. can a 300ex pipe fix on a 250 ex? (1 replies)
  184. Need It Quite (0 replies)
  185. timming (2 replies)
  186. Big Bore or Port & Polish (21 replies)
  187. whats your bore? (0 replies)
  188. Thoughts on the Yoshimura RS-3 Comp Series (2 replies)
  189. 300ex/400ex same axle? (4 replies)
  190. oil tank ? (4 replies)
  191. Engine won't Rev? (6 replies)
  192. Clutch Hard To pull (4 replies)
  193. Bearing Holder (4 replies)
  194. Better slip on- FMF Powercore 4 or Big Gun Race Series (4 replies)
  195. 05 yfz 450 problems with axle (1 replies)
  196. Air box lid? (8 replies)
  197. exhaust making fire (9 replies)
  198. ? on kibblewhite black dimond valves (3 replies)
  199. White Bro's exhaust. (7 replies)
  200. Sugested Jets 440ex, Whitebros Pipe, Airbox Lid off... (6 replies)
  201. 01, 300ex chain (2 replies)
  202. Help, ther rear axle on my 300ex is coming apart (9 replies)
  203. Engine Clicking, Possible Timing Chain???? (12 replies)
  204. Knocking Sound -_- (1 replies)
  205. heat (0 replies)
  206. 400ex wont start (3 replies)
  207. Honda Motor Question (4 replies)
  208. info on the FST 465 BB kit for the 400ex?? (3 replies)
  209. how much??? (3 replies)
  210. riding in the dunes (5 replies)
  211. low end? top end? (3 replies)
  212. KFX 450R replacement airbox. (3 replies)
  213. TRX 450R exhaust (2 replies)
  214. who resleeves cylinders? (3 replies)
  215. 08 KFX450 cherry bomb... (1 replies)
  216. Time to give your thoughts!!! (2 replies)
  217. stock or 440?? (12 replies)
  218. will rider weight effect top speed (6 replies)
  219. Polaris Scrambler 400 (6 replies)
  220. jetting help please (2 replies)
  221. leo lavince pipe (10 replies)
  222. yamaha blaster (2 replies)
  223. fouled plug (4 replies)
  224. What is stock 400ex timing settings? (11 replies)
  225. to slip or not to slip (11 replies)
  226. 2 Questions- about exhaust and difference (5 replies)
  227. bolt torque spec (0 replies)
  228. Pics of carrier bearing and install (15 replies)
  229. HELP guy said he took out the baffel in this pipe??? (2 replies)
  230. 300ex w/ 400ex carb jetting help (0 replies)
  231. cylinder bored out??? (7 replies)
  232. powertrain (2 replies)
  233. Warrior valve adjustment (2 replies)
  234. axle removal (1 replies)
  235. Exhaust pain (1 replies)
  236. I Need Help (3 replies)
  237. yzf250 questions (2 replies)
  238. 400ex Timing Key aftermarket (8 replies)
  239. No spark on decel CDI? Predator 90 (1 replies)
  240. HMF pipes with Vector End cap (1 replies)
  241. Honda Fourtrax 4x4 issues help!! (2 replies)
  242. antifreeze leak (0 replies)
  243. if youve got a fcr, and a bog, check your ap timing screw! (4 replies)
  244. ATV dies out with throttle on Recon 250 (0 replies)
  245. Question about Sparks air filters... (1 replies)
  246. i need help repacking hmf 07 450er (7 replies)
  247. Piston Rings??? (4 replies)
  248. race gas (5 replies)
  249. Breaking up at half throttle.... (4 replies)
  250. My Idea For A Homemade Exhaust (105 replies)