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Honda TRX450R Forums: Honda TRX 450R Forum > 450R Performance and Mods. > Engine
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  1. hrc headpipe and tip vs full exhaust (33 replies)
  2. will i have to change jetting? (2 replies)
  3. difference in hp (6 replies)
  4. Valve Adjustment (52 replies)
  5. WHAT UNI FILTER NUMBER U GUYS USE (1 reply)
  6. 2007 trx 450R HRC KIT??? (6 replies)
  7. How Do You Clean An Oil Cooler (8 replies)
  8. I think I got a jetting issue (9 replies)
  9. Need help Crank (8 replies)
  10. Broken piston (1 reply)
  11. Carb is leaking...need some advice (5 replies)
  12. Stater Clutch... (4 replies)
  13. Oil Mod? (4 replies)
  14. Exhaust gaskets? (2 replies)
  15. help 04/05 carb (7 replies)
  16. Need help!!!!!! (5 replies)
  17. Hard to start (2 replies)
  18. My H.R.E. engine (16 replies)
  19. 450 on alky (10 replies)
  20. cam chain options (4 replies)
  21. 2007 450er Big bore Options (5 replies)
  22. Lectron questions (0 replies)
  23. quick Q (0 replies)
  24. Cam snapped- ever seen this??? (18 replies)
  25. Big Bore cylinders.. 100mm (4 replies)
  26. Why would an engine run perfect one day and then like this the next. (18 replies)
  27. It's mod time.... (14 replies)
  28. Any head pipes that will work on a 05 HMF slip on? (1 reply)
  29. AIR/FUEL Screw (6 replies)
  30. transmission failure (4 replies)
  31. quad makes a grinding noise when upshifting in any gear (1 reply)
  32. race fuel (4 replies)
  33. Jetting (6 replies)
  34. Left intake valve at zero clearence (8 replies)
  35. Head pipe getting red hot (7 replies)
  36. starting problems (6 replies)
  37. i got my hrc headpipe and tip in (5 replies)
  38. 06 Piston (16 replies)
  39. Hours on a bike? (9 replies)
  40. Jetting? (1 reply)
  41. Can't make my mind up (19 replies)
  42. HRC Cam Installation Update (0 replies)
  43. Looking for next mod fcr carb (0 replies)
  44. DO i need to rejet? (7 replies)
  45. visual difference between 04/05 and 06^ header (0 replies)
  46. put hot cam stage 2 in an my starter is acting up (9 replies)
  47. What main jet should I go with? (4 replies)
  48. 04 trx 450r bad throttle response (19 replies)
  49. 04 trx 450r cylinder (2 replies)
  50. 05 head on a 06 trx450 (5 replies)
  51. JETTING O6 450R WITH HRC KIT AND K&N AND FULL LRD PIPE (7 replies)
  52. 06-08 venom pipe on 05 (18 replies)
  53. trx450r 2004 throttle issue (0 replies)
  54. Drag Cut Harness (2 replies)
  55. How loud are HMF slip on pipes (3 replies)
  56. Leak Jet? Help please.. (4 replies)
  57. cp pistons (4 replies)
  58. HRC installed. Question/suggestion for 06 airbox lid (21 replies)
  59. FCR carb (12 replies)
  60. Need manual download link for 2004 trx 45or (3 replies)
  61. Can I run 94 octane with a 13:5:1 (16 replies)
  62. Up @#$% creek... (16 replies)
  63. Differences between 04/05, 06/09 trx and crf heads? (1 reply)
  64. NEED HELP CHOOSING A CRANK!! (3 replies)
  65. turbo 400ex? (3 replies)
  66. pIsToN QuIz?!?!?! (4 replies)
  67. Left crankcase crankshaft bearing dimension (6 replies)
  68. help with upgrades (6 replies)
  69. Is this too big of a shim? (4 replies)
  70. Need Valve Clearances For HC2 Cam (5 replies)
  71. Crank case leak (22 replies)
  72. Water Pump Oil Seal Installation (0 replies)
  73. FCR PICS and Help (1 reply)
  74. TRX clutch and CRF clutch (3 replies)
  75. starter one way (2 replies)
  76. YFZ FCR on 05 (1 reply)
  77. compression check (2 replies)
  78. 04 honda (3 replies)
  79. 04 trx 450r jetting question (1 reply)
  80. 06 TRX450R to CRF450R Question (5 replies)
  81. Jetting (0 replies)
  82. Need tech advice on piston application (4 replies)
  83. HELP!! Is My 05 TRX450R engine seized? (6 replies)
  84. 450 to 450er? (2 replies)
  85. quick refrence point please (2 replies)
  86. FCR jetting help (1 reply)
  87. Cam Flange has spun (7 replies)
  88. HC3 with HRC kit (1 reply)
  89. green wire mod (6 replies)
  90. Fcr Carb (4 replies)
  91. 06 trx450 (2 replies)
  92. How much power do you think i'm making with my setup (10 replies)
  93. Left In The Dark (3 replies)
  94. Need some help and info guys. (5 replies)
  95. tokyo mods wire broke HELP (3 replies)
  96. Electrical harness pics needed (1 reply)
  97. jetting question (0 replies)
  98. 04 trx 450r , need help (7 replies)
  99. another low end bog question (0 replies)
  100. Carb setup for 480 (20 replies)
  101. valve guide reaming required? (0 replies)
  102. Big Bore Cooling???? (1 reply)
  103. fan (1 reply)
  104. jsr (1 reply)
  105. Clutch acts like its being feathered out under acceleration (5 replies)
  106. 06 trx450r with 05 rossier exhaust (3 replies)
  107. 06 trx 450er wont run at all (5 replies)
  108. starting my 07 er problems help please (14 replies)
  109. R&D Power bowl (2 replies)
  110. 02 crd cam install (1 reply)
  111. hot rod stroker crank with a 15 to 1 (0 replies)
  112. cylinder repair (1 reply)
  113. Did I fry my CDI? (2 replies)
  114. Another thinking about stroker thread (1 reply)
  115. Crankshaft? (1 reply)
  116. New engine...now I need more clutch. (6 replies)
  117. ENGINE NOISE PLEASE HELP (3 replies)
  118. Stage 2 hotcam (3 replies)
  119. NO START (3 replies)
  120. head flow (9 replies)
  121. VP U4.2 race gas (9 replies)
  122. Will a stock 05 cam work in my 2007 450ER? (0 replies)
  123. 11.6 hours, already lost 4th geaar (28 replies)
  124. oil coming out of the drain hose?? (6 replies)
  125. white bros aluminum pro core size (0 replies)
  126. hrc/hmf combo (8 replies)
  127. SUNOCO 94? (2 replies)
  128. Engine locked up (4 replies)
  129. hrc/hmf jetting help (3 replies)
  130. which exhuast is better (13 replies)
  131. A few more question on cam installation (2 replies)
  132. 480BB,custom intake, 42.5mm FCR, jetting q's? (9 replies)
  133. FCR YFZ to 05 TRX450R (4 replies)
  134. Tranny/Engine Oil mixing (2 replies)
  135. 04/05 tranmission failure (15 replies)
  136. Carb Float Bowl (3 replies)
  137. cam fit?? (1 reply)
  138. is it worth it? (10 replies)
  139. 04 Exhaust Header Bolts (0 replies)
  140. S/A for a dasa pipe (1 reply)
  141. How do you clean your prefilter? (7 replies)
  142. needle on jet kit (1 reply)
  143. 2005 trx 450r or 2007 trx 450r (0 replies)
  144. 06 Transmission fix (14 replies)
  145. how do you make the 450er start really nice (6 replies)
  146. Flywheel puller size of thread and pitch of 04-05? (3 replies)
  147. What to do? (2 replies)
  148. Whats next? (12 replies)
  149. what size jets should i use? (0 replies)
  150. Breather hoses... (1 reply)
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