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Honda TRX450R Forums: Honda TRX 450R Forum > 450R Performance and Mods. > Engine
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  1. Pinned: TRX450R Cam Guide (1 reply)
  2. Pinned: 15:1.. when compression reaches power liability (29 replies)
  3. Pinned: Crank Bearing Failures (174 replies)
  4. Pinned: The ORGs OFFICIAL Hot Rods +3 stroker thread (71 replies)
  5. Pinned: FCR Throttle Spring Mod (25 replies)
  6. Pinned: 06 Er to Kicker conversion on a budget (39 replies)
  7. Pinned: Fuel: Deto / Preignition / Octane / Etc... (8 replies)
  8. Pinned: Finding crank case pressure... (3 replies)
  9. Pinned: TRX450R Online Reference Materials (2 replies)
  10. Pinned: Uncorking your 450R on a budget... (1 reply)
  11. Pinned: HIGH compression Desrtroys Cranks \ melts pistons\ (54 replies)
  12. Pinned: Honda Parts Finder (Fiche) (0 replies)
  13. Spark Plug Help: NGK Iridium Sparkplug (6 replies)
  14. 04 with random poor idle!! HELP ME. .. (2 replies)
  15. Won't start (2 replies)
  16. No fire to plug (3 replies)
  17. not ur average jet question (6 replies)
  18. checking throttle position sensor (0 replies)
  19. No Compression/Spark, Where to start? (14 replies)
  20. New To The TRX450R (16 replies)
  21. Aftermarket tip on a stock 05 can (8 replies)
  22. Dynatek Dyna FS Digital Ignition Box (8 replies)
  23. engine problem (2 replies)
  24. rebuild advise (2 replies)
  25. Do I really need a pilot wrench? (5 replies)
  26. hot cam 2 (17 replies)
  27. Technicals about removing the T-stat (5 replies)
  28. Flow bench (40 replies)
  29. 471 to 501 (1 reply)
  30. Jardine RT99 Full Exhaust (3 replies)
  31. Valve Lash Specs.....04 HRC (3 replies)
  32. Head (3 replies)
  33. exhaust change (3 replies)
  34. Cam Install Questions (20 replies)
  35. HELP (1 reply)
  36. Mystery spring?? Please help. (12 replies)
  37. Can I use 92 octane on stock motor? (3 replies)
  38. Shoul I replace the crank? (5 replies)
  39. 2005 TRX450R wouldn't start - took it to the dealer (5 replies)
  40. kick start bolt (3 replies)
  41. 04 hooking FCR carb (2 replies)
  42. exhaust core question (3 replies)
  43. gettin' cranky (16 replies)
  44. 07 450er engine mods (1 reply)
  45. Thanks to everyone (9 replies)
  46. Need help picking valve adjustment tools (2 replies)
  47. got a bit of a prob.... (10 replies)
  48. bored carb (3 replies)
  49. Oversized/ HRC Header (9 replies)
  50. Yfz FCR Tps Wiring (3 replies)
  51. ..:Engine wont Start:.. (5 replies)
  52. Cleaning up the lines and hoses? (1 reply)
  53. compression and when is it too high (1 reply)
  54. 450r Yoshimura Exhaust Question.. (5 replies)
  55. str8 filter (1 reply)
  56. Exhaust Dyno Charts (4 replies)
  57. droppin valves (13 replies)
  58. How high (15 replies)
  59. help 450r want run (6 replies)
  60. Removing clutch basket (7 replies)
  61. Need Some Good Used Parts 04/05 (0 replies)
  62. 07 trx450r questions... (7 replies)
  63. Need good mechanic ASAP (1 reply)
  64. ESR 480 piston and cylinder specs? (33 replies)
  65. race gas question?? (14 replies)
  66. HMF jet kit/pro armor exhaust (16 replies)
  67. st8 filter (0 replies)
  68. Quick Shot 3 or Quick Shot 2 & Fuel Screw difference? (11 replies)
  69. 450 won't start (9 replies)
  70. 2007 CRF 450 Valve Cover (12 replies)
  71. A Few Questions Needing answers Quickly.. Please (4 replies)
  72. jetting?????????????????? (5 replies)
  73. thinking about high comp piston, worried about crank (8 replies)
  74. carb problems (2 replies)
  75. uncork 450r on a budget (10 replies)
  76. where to find a lower compression piston (10 replies)
  77. getting started jetting my 07 (8 replies)
  78. Blew a hole in valve cover...... (31 replies)
  79. Another fuel possibility (4 replies)
  80. turbo YFZ ?'s (11 replies)
  81. Torco Accelerator? (2 replies)
  82. 1 more jetting question? (5 replies)
  83. NGPR needle clip question (7 replies)
  84. carb ? (5 replies)
  85. 04/05 trx 450r weaknesses? (4 replies)
  86. Hiss from transmission oil plug (6 replies)
  87. 1 intake valve out of adj...why? (8 replies)
  88. VP 113 (1 reply)
  89. Ice cube or Athena 480 cylinder (26 replies)
  90. porting question, how do i match my porting to the camshaft (6 replies)
  91. Slight pinging noise? (3 replies)
  92. Jetting for 07 450ER w/HMF slip on (5 replies)
  93. 07 450er questions need advice in a hurry! (8 replies)
  94. Jetting questions (5 replies)
  95. still jetting problem when hot (17 replies)
  96. trx 450 running problems (3 replies)
  97. Big Bore kits??? (5 replies)
  98. Dropped Piston!! (64 replies)
  99. Jetting? (3 replies)
  100. What is the brass tube in the bowl? (3 replies)
  101. Clutch slippage (23 replies)
  102. new motor combo hopin for some good power! let me know wat u think (3 replies)
  103. starter slipping (14 replies)
  104. Trying to figure out wat mods to do next (15 replies)
  105. new clutch (4 replies)
  106. Clutch Question (11 replies)
  107. Do i need special tools to adjust valves? (4 replies)
  108. Hrc Kit and Jetting (9 replies)
  109. NEW OIL (14 replies)
  110. #55 leak jet part #? (3 replies)
  111. 05 jetting help (2 replies)
  112. Fine tuning without goin nuts? (1 reply)
  113. Engine builder in TX (5 replies)
  114. getting aggravated with JETTING! (11 replies)
  115. what moly lube do you guys like (20 replies)
  116. Fan Installation Help (2 replies)
  117. What Outerwears fits a Sparks Filter 06+ trx450r?? (5 replies)
  118. carb gurus (8 replies)
  119. Jetting recomendations appreciated for HMF competition system (3 replies)
  120. bogg on bottom end (2 replies)
  121. need help asap right now kick starter (2 replies)
  122. acc pump (11 replies)
  123. Jetting Suggestions (7 replies)
  124. need some suggestions (0 replies)
  125. bore:stroke (15 replies)
  126. where does this go?? (8 replies)
  127. ER vs R Cam Differences? (4 replies)
  128. N-Motion Shorty Pipe (5 replies)
  129. Can we use the CRF450R cam (2 replies)
  130. valve question (9 replies)
  131. Man, there's a lot of cam questions... (3 replies)
  132. another FCR question (1 reply)
  133. What Spark Plug To Get (6 replies)
  134. HMF Jetting w/out lide and Sparks foam filter (0 replies)
  135. HMF Complete and HC2?? (0 replies)
  136. Bog on accel? (18 replies)
  137. 02 crf cam VS. HCII (21 replies)
  138. any suggestions!! (12 replies)
  139. 02 or 03 CRF Cam for an 07 ER (3 replies)
  140. Question on boring carb. (5 replies)
  141. Got a new build in the works.... (45 replies)
  142. ceramic coating head pipe (5 replies)
  143. 3 WAY VALVE?????? (2 replies)
  144. Hot Cam II and HRC Header (7 replies)
  145. IDLE PROBLEM (3 replies)
  146. Which UNI filtr to buy (0 replies)
  147. 08 crf cam (1 reply)
  148. jetting help needed ASAP (1 reply)
  149. RE head porting opinions (12 replies)
  150. Which mod first? (8 replies)
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