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YFZCentral > :::YFZ450 Performance::: > Powertrain
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  1. How Loud (1 reply)
  2. Aftermarket Exhaust Your Guys Opinion (5 replies)
  3. Rebuilt Motor Hard Start (23 replies)
  4. What Is The Part Number For A Nvcq Needle (2 replies)
  5. Horsepower (9 replies)
  6. Ebay Kickstart Kit From Ajracing (23 replies)
  7. Changing Exhausts (2 replies)
  8. My Water Pump Is Leaking From The Vent Hole (5 replies)
  9. Blown Head Gasket (3 replies)
  10. New Guy- In Over His Head On Engine Rebuild (23 replies)
  11. Need Help, Post Buildup, Minor Fixes (12 replies)
  12. Wr Crank (2 replies)
  13. What Nerf Bars Work With A Kickstart? (3 replies)
  14. Would You Pay For This? (16 replies)
  15. Black Box Under Fender (1 reply)
  16. Bored Carb Price From Vendors (8 replies)
  17. Motor Noise (12 replies)
  18. Esr Intake (2 replies)
  19. Cutting Sparks Pipe (16 replies)
  20. Engine Builders (0 replies)
  21. Dasa Or Gytr (11 replies)
  22. Exhaust (1 reply)
  23. Kick Start Lever (1 reply)
  24. Fci Intake (21 replies)
  25. New Slip On (16 replies)
  26. K&n Filter Cleaning And Questions (25 replies)
  27. Need Help Asap. Pls (16 replies)
  28. Base Gasket Blew After Only 5 Hours Of Rebuild (4 replies)
  29. Tps And Tors (0 replies)
  30. '08 Mx/tt Engine Build (5 replies)
  31. Kick Start Kit (4 replies)
  32. Help, Did Mods Now Backfiring (14 replies)
  33. Four Stoke Tech (1 reply)
  34. Backfiring After Heavier Flywheel (0 replies)
  35. Engine Rebuild Questions? (3 replies)
  36. Advance My Timing (6 replies)
  37. Clutch And Axle Problems (4 replies)
  38. Oil ?'s (3 replies)
  39. One More Question,,,,,for Now (11 replies)
  40. Pros & Cons On Gytr Parts (9 replies)
  41. Kick Start (15 replies)
  42. 04/05 Head Vs 06 And Up (6 replies)
  43. Fci Intake Transition Ring (4 replies)
  44. Is It Possible To? (1 reply)
  45. Needle Setting (5 replies)
  46. Kemco Lead Additive (9 replies)
  47. Wont Start (7 replies)
  48. Finally Rebuilding My 04 (3 replies)
  49. Sparks Exhaust ? (7 replies)
  50. Yfz Blowing Fuses (0 replies)
  51. Battery Tender (0 replies)
  52. Rev Box (1 reply)
  53. Jetting And Black Exhaust? (5 replies)
  54. Quick Jetting Question. (3 replies)
  55. Big Build Jetting (1 reply)
  56. Yz426f Kickstart In A Yfz 450 (2 replies)
  57. Exhaust Gasket Inside Of The Head (4 replies)
  58. Horse Power (12 replies)
  59. Yfz Feels Like Its Choking Up When Riding (10 replies)
  60. Sparks Big Core Db ? (5 replies)
  61. Lrd Exhaust Leak. (13 replies)
  62. Backfire With New Header (9 replies)
  63. Mx Slipper Clutch? (8 replies)
  64. Yfz 450 Cam Mod (3 replies)
  65. Simple Horespower Gains? (8 replies)
  66. Wr Vs 07 Yfz Crank Setup? (8 replies)
  67. Yfz450 Efi Conversion (8 replies)
  68. Dasa Exhaust Sale 12% Off (4 replies)
  69. Crankshaft Question? (7 replies)
  70. 07 Engine Rebuild (2 replies)
  71. Hd Transmission (6 replies)
  72. What Jets Should I Use? (3 replies)
  73. Hi Comp Question (16 replies)
  74. Can Yfz450s Be Tuned To Run 110 Av Gas (6 replies)
  75. Rough Starting (12 replies)
  76. Small Black Plastic Pieces (7 replies)
  77. Rev Box? (6 replies)
  78. Needle (8 replies)
  79. Jet Or Maybe Something Else? (8 replies)
  80. Clutch (0 replies)
  81. Gas For High Compression Piston (7 replies)
  82. Compression #'s (1 reply)
  83. Throttle Response (1 reply)
  84. Loosing Anti-freeze (4 replies)
  85. Jetting Question. Sry (5 replies)
  86. Cams (3 replies)
  87. What Could It Be? (3 replies)
  88. Red Hot Pipe (8 replies)
  89. Oil Filter For The R? (5 replies)
  90. Cam-mod Was Done Backwards? (3 replies)
  91. Adj The Valves With Cam Mod (6 replies)
  92. Motor Done But Same Probs As Before (11 replies)
  93. Oil (10 replies)
  94. Stiff Crank (9 replies)
  95. Kick Start Question... (5 replies)
  96. Looking For Some More Power (11 replies)
  97. Running Hot (5 replies)
  98. Blowing Oil Out Of Head. (3 replies)
  99. Advise Needed? Do I Need To Tear Down And Clean Motor? (8 replies)
  100. Yfz It Cutting Out (6 replies)
  101. Want To Take Out Stock Arrestor And Other ? (1 reply)
  102. Yfz 450 Full Hmf Exhaust (0 replies)
  103. Athena 478 Big Bore Kit And Port And Polish (4 replies)
  104. Wr Crank Info (5 replies)
  105. Need Help! (7 replies)
  106. Exhaust Flange (1 reply)
  107. Hmf Exhaust Leak! (9 replies)
  108. Starting Hard (7 replies)
  109. Older Gytr Carbon Fiber Pipe (5 replies)
  110. Removing Fan (6 replies)
  111. Piston An Cam Combo ? (14 replies)
  112. 04/05 Motor Vs 06 And Up (4 replies)
  113. Low Tank Oil - Problem? (7 replies)
  114. Main Jet (4 replies)
  115. Water Pump Seals/gasket (2 replies)
  116. New Motor (5 replies)
  117. Carb Settings (5 replies)
  118. Will Premium Gas Do This (7 replies)
  119. Spring Mod (19 replies)
  120. I Need Help, Yfz Wont Start (2 replies)
  121. Yfz450 Starting Problem (5 replies)
  122. Softer Thumb Throttle Needed. (14 replies)
  123. Is It Bad Jetting (6 replies)
  124. Octane (5 replies)
  125. Engine Seized? (3 replies)
  126. The Biuld Is On.. Need Some Pointers Or Help Let Me Know What You Guyi (13 replies)
  127. How Do I Know?! (1 reply)
  128. Stupid Water Pump (6 replies)
  129. Lever Clearance Issue (5 replies)
  130. C12 ? (5 replies)
  131. Falicon Cylinders? (3 replies)
  132. Check Out This New Carb :) (65 replies)
  133. After Market Header ? (13 replies)
  134. New To Yfz's And Have Some Questions (8 replies)
  135. Dasa Exhaust (11 replies)
  136. Motor Tear Down (w/pics) (13 replies)
  137. What Could Have Caused This? (16 replies)
  138. Oil Mod (8 replies)
  139. Anyone Know If Klotz Oil Is? (1 reply)
  140. Better Airflow Alternative To Stock Rubber Intake Boot? (3 replies)
  141. Just Pulled The Motor Out... (4 replies)
  142. Another Jet Question (1 reply)
  143. How Much Horsepower (16 replies)
  144. Help Please (9 replies)
  145. Venom Piston Vs Regular Cp (1 reply)
  146. Jsr Exhaust (22 replies)
  147. Jetting (6 replies)
  148. Gearing Issues (12 replies)
  149. Jetting In Michigan, Wisconsin, Indiana? Or Close? (7 replies)
  150. Was Discouraged (9 replies)
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